diff --git a/index.html b/index.html
index 8909167..5407185 100644
--- a/index.html
+++ b/index.html
@@ -20,10 +20,6 @@
 
   <link rel="stylesheet" href="css/style.css">
 
-  <script type="text/javascript" src="vendor/d3/d3.min.js"></script>
-  <script type="text/javascript" src="vendor/d3/d3.geom.min.js?2.1.3"></script>
-  <script type="text/javascript" src="vendor/d3/d3.layout.min.js?2.1.3"></script>
-
   <script type="text/javascript">
 jQuery(document).ready(function($) {
   $('.facet-view-simple').facetview({
diff --git a/jquery.facetview.js b/jquery.facetview.js
index 4948bd8..2e2bd71 100644
--- a/jquery.facetview.js
+++ b/jquery.facetview.js
@@ -131,17 +131,19 @@ jQuery.extend({
         // specify the defaults
         var defaults = {
             "searchbox_class": ".facetview_freetext",// the class of the search boxes - only the value in the last found box will count
+            "searchbox_shade": "#ecf4ff",           // the colour of the search box background
             "embedded_search": true,                // whether or not to put a search bar on the page (if not, another must be identified manually)
             "config_file": false,                   // a remote config file URL
             "facets":[],                            // facet objects: {"field":"blah", "display":"arg",...}
                                                     // be sure if you expect to define any of these as nested that you use their full scope eg. nestedobj.nestedfield
-            "extra_facets": {},                     // any extra facet queries, so results can be retrieved - NOT used for frontend buttons. define as per elasticsearch facets
+            "extra_facets": {},                     // any extra facet queries, so results can be retrieved - NOT used for filter buttons. define as per elasticsearch facets
             "allow_facet_logic_choice": false,      // whether or not users can change facet logic from default - say from AND to OR
+            "searchbox_fieldselect": ['author.name'],            // a list of field names to which search terms can be restricted
+            "search_sortby": ['year'],                    // a list of field names by which to sort search results
+            "enable_rangeselect": false,            // enable or disable the ability to select a range across a filter - RANGES NEED SOME WORK AFTER RECENT UPDATE, KEEP DISABLED FOR NOW
             "default_facet_logic": "AND",           // how facet choices should be applied to the query by default
-            "addremovefacets": false,               // false if no facets can be added at front end, otherwise list of facet names
             "result_display": resdisplay,           // display template for search results
             "display_images": true,                 // whether or not to display images found in links in search results
-            "visualise_filters": true,              // whether or not to allow filter vis via d3
             "description":"",                       // a description of the current search to embed in the display
             "search_url":"",                        // the URL against which to submit searches
             "datatype":"jsonp",                     // the datatype for the search url - json for local, jsonp for remote
@@ -164,12 +166,12 @@ jQuery.extend({
             },
             "pager_on_top": false,                  // set to true to show pager (less, more, total) on top as well as bottom of search results
             "sort":[],                              // sort parameters for result set, as per elasticsearch
-            "searchwrap_start":'<table class="table table-striped" id="facetview_results">',                  // wrap the search result set in these tags
+            "searchwrap_start":'<table class="table table-striped table-bordered" id="facetview_results">',                  // wrap the search result set in these tags
             "searchwrap_end":"</table>",            // wrap the search result set in these tags
             "resultwrap_start":"<tr><td>",          // wrap a given result in this
             "resultwrap_end":"</td></tr>",          // wrap a given result in this
             "result_box_colours":[],                // apply random bg color from the list to each .result_colour element
-            "fadein":1000,                           // fadein effect on results in ms   
+            "fadein":800,                           // fadein effect on results in ms   
             "post_search_callback": false           // if this is defined as a function, it will be called any time new results are retrieved and drawn on the page
         };
 
@@ -195,11 +197,13 @@ jQuery.extend({
             if ( $(this).hasClass('facetview_open') ) {
                 $(this).children('i').replaceWith('<i class="icon-plus"></i>');
                 $(this).removeClass('facetview_open');
-                $('#facetview_' + $(this).attr('rel') ).children().hide();
+                $('#facetview_' + $(this).attr('rel') ).children().find('.facetview_filtervalue').hide();
+                $(this).siblings('.facetview_filteroptions').hide();
             } else {
                 $(this).children('i').replaceWith('<i class="icon-minus"></i>');
                 $(this).addClass('facetview_open');
-                $('#facetview_' + $(this).attr('rel') ).children().show();
+                $('#facetview_' + $(this).attr('rel') ).children().find('.facetview_filtervalue').show();
+                $(this).siblings('.facetview_filteroptions').show();
             }
         };
 
@@ -215,41 +219,27 @@ jQuery.extend({
                     }
                 }
             }
-            if ( $(this).hasClass('facetview_count') ) {
+            // iterate to next sort type on click. order is term, rterm, count, rcount
+            if ( $(this).hasClass('facetview_term') ) {
+                options.facets[which]['order'] = 'reverse_term';
+                $(this).html('a-z <i class="icon-arrow-up"></i>');
+                $(this).removeClass('facetview_term').addClass('facetview_rterm');
+            } else if ( $(this).hasClass('facetview_rterm') ) {
                 options.facets[which]['order'] = 'count';
-            } else if ( $(this).hasClass('facetview_term') ) {
-                options.facets[which]['order'] = 'term';
-            } else if ( $(this).hasClass('facetview_rcount') ) {
+                $(this).html('count <i class="icon-arrow-down"></i>');
+                $(this).removeClass('facetview_rterm').addClass('facetview_count');
+            } else if ( $(this).hasClass('facetview_count') ) {
                 options.facets[which]['order'] = 'reverse_count';
-            } else if ( $(this).hasClass('facetview_rterm') ) {
-                options.facets[which]['order'] = 'reverse_term';
+                $(this).html('count <i class="icon-arrow-up"></i>');
+                $(this).removeClass('facetview_count').addClass('facetview_rcount');
+            } else if ( $(this).hasClass('facetview_rcount') ) {
+                options.facets[which]['order'] = 'term';
+                $(this).html('a-z <i class="icon-arrow-down"></i>');
+                $(this).removeClass('facetview_rcount').addClass('facetview_term');
             }
             dosearch();
-            if ( !$(this).parent().parent().siblings('.facetview_filtershow').hasClass('facetview_open') ) {
-                $(this).parent().parent().siblings('.facetview_filtershow').trigger('click');
-            }
         };
         
-        var renamefilter = function(event) {
-            event.preventDefault();
-            var renamewhat = $(this).attr('href');
-            var which = 0;
-            for (item in options.facets) {
-                if ('field' in options.facets[item]) {
-                    if ( options.facets[item]['field'] == renamewhat) {
-                        which = item;
-                    }
-                }
-            }
-            var newname = prompt('What would you like to call this filter?');
-            options.facets[which]['display'] = newname;
-            buildfilters();
-            dosearch();
-            if ( !$(this).parent().parent().siblings('.facetview_filtershow').hasClass('facetview_open') ) {
-                $(this).parent().parent().siblings('.facetview_filtershow').trigger('click');
-            }
-        };
-
         // adjust how many results are shown
         var morefacetvals = function(event) {
             event.preventDefault();
@@ -260,20 +250,14 @@ jQuery.extend({
                 var currentval = 10;
             }
             var newmore = prompt('Currently showing ' + currentval + 
-                '. How many would you like instead?');
+                '. There are ' + '' + 'in total. How many would you like instead?');
             if (newmore) {
                 options.facets[ $(this).attr('rel') ]['size'] = parseInt(newmore);
-                $(this).html('show up to (' + newmore + ')');
+                $(this).html(newmore);
                 dosearch();
-                if ( !$(this).parent().parent().siblings('.facetview_filtershow').hasClass('facetview_open') ) {
-                    $(this).parent().parent().siblings('.facetview_filtershow').trigger('click');
-                }
             }
         };
 
-
-
-
         // insert a facet range once selected
         var dofacetrange = function(rel) {
             $('#facetview_rangeresults_' + rel).remove();
@@ -327,7 +311,7 @@ jQuery.extend({
             $('.facetview_facetlogic').bind('click',changelogic);
             var values = [];
             var valsobj = $( '#facetview_' + $(this).attr('href').replace(/\./gi,'_') );
-            valsobj.children('li').children('a').each(function() {
+            valsobj.find('.facetview_filterchoice').each(function() {
                 values.push( $(this).attr('href') );
             });
             values = values.sort();
@@ -351,213 +335,73 @@ jQuery.extend({
         var buildfilters = function() {
             if ( options.facets.length > 0 ) {
                 var filters = options.facets;
-                var thefilters = "<h3>Filter by</h3>";
+                var thefilters = '';
                 for ( var idx in filters ) {
-                    var _filterTmpl = '<div id="facetview_filterbuttons" class="btn-group"> \
-                        <a style="text-align:left; min-width:70%;" class="facetview_filtershow btn" \
-                          rel="{{FILTER_NAME}}" href=""> \
-                          <i class="icon-plus"></i> \
-                          {{FILTER_DISPLAY}}</a> \
-                          <a class="btn dropdown-toggle" data-toggle="dropdown" \
-                          href="#"><span class="caret"></span></a> \
-                          <ul class="dropdown-menu"> \
-                            <li><a class="facetview_sort facetview_count" href="{{FILTER_EXACT}}">sort by count</a></li> \
-                            <li><a class="facetview_sort facetview_term" href="{{FILTER_EXACT}}">sort by term</a></li> \
-                            <li><a class="facetview_sort facetview_rcount" href="{{FILTER_EXACT}}">sort reverse count</a></li> \
-                            <li><a class="facetview_sort facetview_rterm" href="{{FILTER_EXACT}}">sort reverse term</a></li> \
-                            <li class="divider"></li> \
-                            <li><a class="facetview_facetrange" rel="{{FACET_IDX}}" href="{{FILTER_EXACT}}">apply a filter range</a></li>{{FACET_VIS}} \
-                            <li><a class="facetview_morefacetvals" rel="{{FACET_IDX}}" href="{{FILTER_EXACT}}">show up to ({{FILTER_HOWMANY}})</a></li> \
-                            <li class="divider"></li> \
-                            <li><a class="facetview_renamefilter" rel="{{FACET_IDX}}" href="{{FILTER_EXACT}}">rename this filter</a></li> \
-                            </ul></div> \
-                      <ul id="facetview_{{FILTER_NAME}}" \
-                        class="facetview_filters"></ul>';
-                    if (options.visualise_filters) {
-                        var vis = '<li><a class="facetview_visualise" rel="{{FACET_IDX}}" href="{{FILTER_DISPLAY}}">visualise this filter</a></li>';
-                        thefilters += _filterTmpl.replace(/{{FACET_VIS}}/g, vis);
-                    } else {
-                        thefilters += _filterTmpl.replace(/{{FACET_VIS}}/g, '');
+                    var _filterTmpl = '<table id="facetview_{{FILTER_NAME}}" class="facetview_filters table table-bordered table-condensed table-striped" style="display:none;"> \
+                        <tr class="facetview_facetheader"><td><a class="facetview_filtershow" title="filter by {{FILTER_DISPLAY}}" rel="{{FILTER_NAME}}" \
+                        style="color:#333; font-weight:bold;" href=""><i class="icon-plus"></i> {{FILTER_DISPLAY}} \
+                        </a> \
+                        <div class="btn-group facetview_filteroptions" style="display:none; margin-top:5px;"> \
+                            <a class="btn btn-small facetview_learnmore" title="click to view search help information" href="#"><b>?</b></a> \
+                            <a class="btn btn-small facetview_morefacetvals" title="filter list size" rel="{{FACET_IDX}}" href="{{FILTER_EXACT}}">{{FILTER_HOWMANY}}</a> \
+                            <a class="btn btn-small facetview_sort facetview_term" title="filter value order" href="{{FILTER_EXACT}}">a-z <i class="icon-arrow-down"></i></a>';
+                    if ( options.enable_rangeselect ) {
+                        _filterTmpl += '<a class="btn btn-small facetview_facetrange" title="make a range selection on this filter" rel="{{FACET_IDX}}" href="{{FILTER_EXACT}}">range</a>';
                     }
-                    thefilters = thefilters.replace(/{{FILTER_NAME}}/g, filters[idx]['field'].replace(/\./gi,'_')).replace(/{{FILTER_EXACT}}/g, filters[idx]['field']);
+                    _filterTmpl +='</div> \
+                        </td></tr> \
+                        </table>';
+                    _filterTmpl = _filterTmpl.replace(/{{FILTER_NAME}}/g, filters[idx]['field'].replace(/\./gi,'_')).replace(/{{FILTER_EXACT}}/g, filters[idx]['field']);
+                    thefilters += _filterTmpl;
                     if ('size' in filters[idx] ) {
                         thefilters = thefilters.replace(/{{FILTER_HOWMANY}}/gi, filters[idx]['size']);
                     } else {
                         thefilters = thefilters.replace(/{{FILTER_HOWMANY}}/gi, 10);
-                    }
+                    };
                     thefilters = thefilters.replace(/{{FACET_IDX}}/gi,idx);
                     if ('display' in filters[idx]) {
                         thefilters = thefilters.replace(/{{FILTER_DISPLAY}}/g, filters[idx]['display']);
                     } else {
                         thefilters = thefilters.replace(/{{FILTER_DISPLAY}}/g, filters[idx]['field']);
-                    }
-                }
+                    };
+                };
                 $('#facetview_filters').html("").append(thefilters);
-                options.visualise_filters ? $('.facetview_visualise').bind('click',show_vis) : "";
                 $('.facetview_morefacetvals').bind('click',morefacetvals);
                 $('.facetview_facetrange').bind('click',facetrange);
                 $('.facetview_sort').bind('click',sortfilters);
-                $('.facetview_renamefilter').bind('click',renamefilter);
                 $('.facetview_filtershow').bind('click',showfiltervals);
-                options.addremovefacets ? addremovefacets() : "";
-                if (options.description) {
-                    $('#facetview_filters').append('<div><h3>Meta</h3>' + options.description + '</div>');
-                }
-            }
-        }
+                $('.facetview_learnmore').unbind('click',learnmore);
+                $('.facetview_learnmore').bind('click',learnmore);
+                options.description ? $('#facetview_filters').append('<div><h3>Meta</h3>' + options.description + '</div>') : "";
+            };
+        };
 
         // set the available filter values based on results
         var putvalsinfilters = function(data) {
             // for each filter setup, find the results for it and append them to the relevant filter
             for ( var each in options.facets ) {
-                $('#facetview_' + options.facets[each]['field'].replace(/\./gi,'_')).children().remove();
+                $('#facetview_' + options.facets[each]['field'].replace(/\./gi,'_')).children().find('.facetview_filtervalue').remove();
                 var records = data["facets"][ options.facets[each]['field'] ];
                 for ( var item in records ) {
-                    var append = '<li><a class="facetview_filterchoice' +
+                    var append = '<tr class="facetview_filtervalue" style="display:none;"><td><a class="facetview_filterchoice' +
                         '" rel="' + options.facets[each]['field'] + '" href="' + item + '">' + item +
-                        ' (' + records[item] + ')</a></li>';
+                        ' (' + records[item] + ')</a></td></tr>';
                     $('#facetview_' + options.facets[each]['field'].replace(/\./gi,'_')).append(append);
                 }
-                if ( !$('.facetview_filtershow[rel="' + options.facets[each]['field'].replace(/\./gi,'_') + '"]').hasClass('facetview_open') ) {
-                    $('#facetview_' + options.facets[each]['field'].replace(/\./gi,'_') ).children().hide();
+                if ( $('.facetview_filtershow[rel="' + options.facets[each]['field'].replace(/\./gi,'_') + '"]').hasClass('facetview_open') ) {
+                    $('#facetview_' + options.facets[each]['field'].replace(/\./gi,'_') ).children().find('.facetview_filtervalue').show();
                 }
             }
             $('.facetview_filterchoice').bind('click',clickfilterchoice);
-        };
-
-        // show the add/remove filters options
-        var addremovefacet = function(event) {
-            event.preventDefault();
-            if ( $(this).hasClass('facetview_filterexists') ) {
-                $(this).removeClass('facetview_filterexists');
-                delete options.facets[$(this).attr('href')];
-            } else {
-                $(this).addClass('facetview_filterexists');
-                options.facets.push({'field':$(this).attr('title')});
-            }
-            buildfilters();
-            dosearch();
-        };
-        var showarf = function(event) {
-            event.preventDefault();
-            $('#facetview_addremovefilters').toggle();
-        };
-        var addremovefacets = function() {
-            $('#facetview_filters').append('<a id="facetview_showarf" href="">' + 
-                'add or remove filters</a><div id="facetview_addremovefilters"></div>');
-            for (var idx in options.facets) {
-                if ( options.addremovefacets.indexOf(options.facets[idx].field) == -1 ) {
-                    options.addremovefacets.push(options.facets[idx].field);
-                }
-            }
-            for (var facet in options.addremovefacets) {
-                var thisfacet = options.addremovefacets[facet];
-                var filter = '<a class="btn ';
-                var index = 0;
-                var icon = '<i class="icon-plus"></i>';
-                for (var idx in options.facets) {
-                    if ( options.facets[idx].field == thisfacet ) {
-                        filter += 'btn-info facetview_filterexists';
-                        index = idx;
-                        icon = '<i class="icon-remove icon-white"></i> ';
-                    }
-                }
-                filter += ' facetview_filterchoose" style="margin-top:5px;" href="' + index + '" title="' + thisfacet + '">' + icon + thisfacet + '</a><br />';
-                $('#facetview_addremovefilters').append(filter);
-            }
-            $('#facetview_addremovefilters').hide();
-            $('#facetview_showarf').bind('click',showarf);
-            $('.facetview_filterchoose').bind('click',addremovefacet);
-        };
-
-
-        // ===============================================
-        // functions to do with filter visualisations
-        // ===============================================
-        
-        // TODO: update so that multiple filters can be added to the same visualisation panel
-
-        var show_vis = function(event) {
-            event.preventDefault();
-            if ($('#facetview_visualisation').length) {
-                $('#facetview_visualisation').remove();
-            } else {
-                var vis = '<div id="facetview_visualisation"> \
-                    <div class="modal-header"> \
-                    <a class="facetview_removevis close">×</a> \
-                    <h3>{{VIS_TITLE}}</h3> \
-                    </div> \
-                    <div class="modal-body"> \
-                    </div> \
-                    <div class="modal-footer"> \
-                    <a class="facetview_removevis btn close">Close</a> \
-                    </div> \
-                    </div>';
-                vis = vis.replace(/{{VIS_TITLE}}/gi,$(this).attr('href'));
-                $('#facetview_rightcol').prepend(vis);
-                $('.facetview_removevis').bind('click',show_vis);
-                bubble($(this).attr('rel'),$('#facetview_rightcol').css('width').replace(/px/,'')-20);
-            }
-        };
-
-
-        var bubble = function(facetidx,width) {
-            var facetkey = options.facets[facetidx]['field'];
-            var facets = options.data.facets[facetkey];
-            data = {"children":[]};
-            var count = 0;
-            for (var fct in facets) {
-                var arr = {
-                    "className": fct,
-                    "packageName": count++,
-                    "value": facets[fct]
+            $('.facetview_filters').each(function() {
+                if ( $(this).children().find('.facetview_filtervalue').length > 1 ) {
+                    $(this).show();
+                } else {
+                    $(this).hide();
                 };
-                data["children"].push(arr);
-            }
-            var r = width,
-                format = d3.format(",d"),
-                fill = d3.scale.category20c();
-            var bubble = d3.layout.pack()
-                .sort(null)
-                .size([r, r]);
-            var vis = d3.select("#facetview_visualisation > .modal-body").append("svg:svg")
-                .attr("width", r)
-                .attr("height", r)
-                .attr("class", "bubble");
-            var node = vis.selectAll("g.node")
-                .data(bubble(data)
-                .filter(function(d) { return !d.children; }))
-                .enter().append("svg:g")
-                .attr("class", "node")
-                .attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; });
-            node.append("svg:title")
-                .text(function(d) { return d.data.className + ": " + format(d.value); });
-            node.append("svg:circle")
-                .attr("r", function(d) { return d.r; })
-                .style("fill", function(d) { return fill(d.data.packageName); });
-            node.append("svg:text")
-                .attr("text-anchor", "middle")
-                .attr("dy", ".3em")
-                .text(function(d) { return d.data.className.substr(0,10) + ".. (" + d.data.value + ")"; });
-            node.on('click',function(d) {
-                clickbubble(facetkey,d.data.className);
             });
         };
 
-
-        var clickbubble = function(facetkey,facetvalue) {
-            var newobj = '<a class="facetview_filterselected facetview_clear ' + 
-                'btn btn-info" rel="' + facetkey + 
-                '" alt="remove" title="remove"' +
-                ' href="' + facetvalue + '">' +
-                facetvalue + ' <i class="icon-remove"></i></a>';
-            $('#facetview_selectedfilters').append(newobj);
-            $('.facetview_filterselected').unbind('click',clearfilter);
-            $('.facetview_filterselected').bind('click',clearfilter);
-            options.paging.from = 0;
-            dosearch();
-            $('#facetview_visualisation').remove();
-        };
         
         // ===============================================
         // functions to do with building results
@@ -740,7 +584,6 @@ jQuery.extend({
         }
 
         // put the results on the page
-        // TODO: if a filter visualisation is on the page, update it
         showresults = function(sdata) {
             options.rawdata = sdata;
             // get the data and parse from the solr / es layout
@@ -884,16 +727,22 @@ jQuery.extend({
                 }
             }
             if (bool) {
-                options.q != ""
-                    ? bool['must'].push( {'query_string': { 'query': options.q } } )
-                    : "";
+                if ( options.q != "" ) {
+                    var qryval = { 'query': options.q };
+                    $('.facetview_searchfield').val() != "" ? qryval.default_field = $('.facetview_searchfield').val() : "";
+                    bool['must'].push( {'query_string': qryval } );
+                };
                 nested ? bool['must'].push(nested) : "";
                 qs['query'] = {'bool': bool};
             } else {
-                options.q != ""
-                    ? qs['query'] = {'query_string': { 'query': options.q } }
-                    : qs['query'] = {'match_all': {}};
-            }
+                if ( options.q != "" ) {
+                    var qryval = { 'query': options.q };
+                    $('.facetview_searchfield').val() != "" ? qryval.default_field = $('.facetview_searchfield').val() : "";
+                    qs['query'] = {'query_string': qryval };
+                } else {
+                    qs['query'] = {'match_all': {}};
+                };
+            };
             // set any paging
             options.paging.from != 0 ? qs['from'] = options.paging.from : "";
             options.paging.size != 10 ? qs['size'] = options.paging.size : "";
@@ -921,9 +770,8 @@ jQuery.extend({
         var dosearch = function() {
             jQuery('.notify_loading').show();
             // update the options with the latest q value
-            // TODO: should add a check and perhaps a clear of other searchboxes
             $(options.searchbox_class).each(function() {
-                $(this).val().length != 0 ? options.q = $(this).val() : "";
+                options.q = $(this).val();
             });
             // make the search query
             if ( options.search_index == "elasticsearch" ) {
@@ -994,70 +842,12 @@ jQuery.extend({
             dosearch();
         };
 
-
-//----------- NEED TO ENABLE BELOW FUNCTION -----------
-
-        // do search options
-        var fixmatch = function(event) {
+        // show search help
+        var learnmore = function(event) {
             event.preventDefault();
-            var fixtype = $(this).attr('id');
-            $(options.searchbox_class).each(function() {
-                if ( fixtype == "facetview_partial_match" && $(this).val().length != 0 ) {
-                    var newvals = $(this).val().replace(/"/gi,'').replace(/\*/gi,'').replace(/\~/gi,'').split(' ');
-                    var newstring = "";
-                    for (item in newvals) {
-                        if (newvals[item].length > 0 && newvals[item] != ' ') {
-                            if (newvals[item] == 'OR' || newvals[item] == 'AND') {
-                                newstring += newvals[item] + ' ';
-                            } else {
-                                newstring += '*' + newvals[item] + '* ';
-                            }
-                        }
-                    }
-                    $(this).val(newstring);
-                    $(this).focus().trigger('keyup');
-                } else if ( fixtype == "facetview_fuzzy_match" && $(this).val().length != 0 ) {
-                    var newvals = $(this).val().replace(/"/gi,'').replace(/\*/gi,'').replace(/\~/gi,'').split(' ');
-                    var newstring = "";
-                    for (item in newvals) {
-                        if (newvals[item].length > 0 && newvals[item] != ' ') {
-                            if (newvals[item] == 'OR' || newvals[item] == 'AND') {
-                                newstring += newvals[item] + ' ';
-                            } else {
-                                newstring += newvals[item] + '~ ';
-                            }
-                        }
-                    }
-                    $(this).val(newstring);
-                    $(this).focus().trigger('keyup');
-                } else if ( fixtype == "facetview_exact_match" && $(this).val().length != 0 ) {
-                    var newvals = $(this).val().replace(/"/gi,'').replace(/\*/gi,'').replace(/\~/gi,'').split(' ');
-                    var newstring = "";
-                    for (item in newvals) {
-                        if (newvals[item].length > 0 && newvals[item] != ' ') {
-                            if (newvals[item] == 'OR' || newvals[item] == 'AND') {
-                                newstring += newvals[item] + ' ';
-                            } else {
-                                newstring += '"' + newvals[item] + '" ';
-                            }
-                        }
-                    }
-                    $.trim(newstring,' ');
-                    $(this).val(newstring);
-                    $(this).focus().trigger('keyup');
-                } else if ( fixtype == "facetview_match_all" && $(this).val().length != 0 ) {
-                    $(this).val($.trim($(this).val().replace(/ OR /gi,' ')));
-                    $(this).val($(this).val().replace(/ /gi,' AND '));
-                    $(this).focus().trigger('keyup');
-                } else if ( fixtype == "facetview_match_any" && $(this).val().length != 0 ) {
-                    $(this).val($.trim($(this).val().replace(/ AND /gi,' ')));
-                    $(this).val($(this).val().replace(/ /gi,' OR '));
-                    $(this).focus().trigger('keyup');
-                }
-            });
+            $('#facetview_learnmore').toggle();
         };
 
-
         // adjust how many results are shown
         var howmany = function(event) {
             event.preventDefault();
@@ -1066,46 +856,118 @@ jQuery.extend({
             if (newhowmany) {
                 options.paging.size = parseInt(newhowmany);
                 options.paging.from = 0;
-                $('#facetview_howmany').html('results per page (' + options.paging.size + ')');
+                if ( options.embedded_search == true ) {
+                    var thewidth = $(options.searchbox_class).width();
+                    $(options.searchbox_class).css('width',thewidth - 40 + 'px');
+                };
+                $('.facetview_howmany').html(options.paging.size);
+                dosearch();
+            }
+        };
+        
+        // change the search result order
+        var order = function(event) {
+            event.preventDefault();
+            if ( $(this).attr('href') == 'desc' ) {
+                $(this).html('<i class="icon-arrow-up"></i>');
+                $(this).attr('href','asc');
+            } else {
+                $(this).html('<i class="icon-arrow-down"></i>');
+                $(this).attr('href','desc');
+            };
+            orderby();
+        };
+        var orderby = function(event) {
+            event ? event.preventDefault() : "";
+            var sortchoice = $('.facetview_orderby').val();
+            if ( sortchoice.length != 0 ) {
+                var sorting = {};
+                var sorton = sortchoice + '.exact';
+                sorting[sorton] = {'order': $('.facetview_order').attr('href')};
+                options.sort = [sorting];
+                options.paging.from = 0;
                 dosearch();
             }
         };
+        
+        // adjust the search field focus
+        var searchfield = function(event) {
+            event.preventDefault();
+            options.paging.from = 0;
+            dosearch();
+        };
 
+        // a help box for embed in the facet view object below
+        var thehelp = '<div id="facetview_learnmore" class="well" style="margin-top:10px; display:none;"> \
+            <p><b>Partial matches with wildcard</b> can be performed by using the asterisk <b>*</b> wildcard. For example, <b>einste*</b>, <b>*nstei*</b>.</p> \
+            <p><b>Fuzzy matches</b> can be performed using tilde <b>~</b>. For example, <b>einsten~</b> may help find <b>einstein</b>.</p> \
+            <p><b>Exact matches</b> can be performed with <b>"</b> double quotes. For example <b>"einstein"</b> or <b>"albert einstein"</b>.</p> \
+            <p>Match all search terms by concatenating them with <b>AND</b>. For example <b>albert AND einstein</b>.</p> \
+            <p>Match any term by concatenating them with <b>OR</b>. For example <b>albert OR einstein</b>.</p> \
+            <p><b>Combinations</b> will work too, like <b>albert OR einste~</b>, or <b>"albert" "einstein"</b>.</p> \
+            <p><b>Result set size</b> can be altered by clicking on the result size number preceding the search box above.</p> \
+            <p><b>Remove all</b> search values and settings by clicking the search icon at the left of the search box above.</p>';
+        if ( options.searchbox_fieldselect.length > 0 ) {
+            thehelp += '<p>By default, terms are searched for across entire record entries. \
+                This can be restricted to particular fields by selecting the field of interest from the <b>search field</b> dropdown</p>';
+        };
+        if ( options.search_sortby.length > 0 ) {
+            thehelp += '<p>Choose a field to <b>sort the search results</b> by clicking the double arrow above.</p>';
+        };
+        if ( options.facets.length > 0 ) {
+            thehelp += '<hr></hr>';
+            thehelp += '<p>Use the <b>filters</b> on the left to directly select values of interest. \
+                Click the filter name to open the list of available terms and show further filter options.</p> \
+                <p><b>Filter list size</b> can be altered by clicking on the filter size number<./p> \
+                <p><b>Filter list order </b> can be adjusted by clicking the order options - \
+                from a-z ascending or descending, or by count ascending or descending.</p> \
+                <p>To further assist discovery of particular filter values, use in combination \
+                with the main search bar - search terms entered there will automatically adjust the available filter values.</p> \
+                <p><b>Apply a filter range</b> rather than just selecting a single value by clicking on the <b>range</b> button. \
+                This enables restriction of result sets to within a range of values - for example from year 1990 to 2012.</p> \
+                <p>Filter ranges are only available across filter values already in the filter list; \
+                so if a wider filter range is required, first increase the filter size then select the filter range.</p>';
+        };
+        thehelp += '<p><a class="facetview_learnmore label" href="#">close the help</a></p></div>';
+        
         // the facet view object to be appended to the page
         var thefacetview = '<div id="facetview"><div class="row-fluid">';
         if ( options.facets.length > 0 ) {
-            thefacetview += '<div class="span3"><div id="facetview_filters"></div></div>';
+            thefacetview += '<div class="span3"><div id="facetview_filters" style="padding-top:45px;"></div></div>';
             thefacetview += '<div class="span9" id="facetview_rightcol">';
         } else {
             thefacetview += '<div class="span12" id="facetview_rightcol">';
         }
         if ( options.embedded_search == true ) {
-            thefacetview += '<div id="facetview_searchbar" style="display:inline; float:left;" class="input-prepend"> \
-               <span class="add-on"><i class="icon-search"></i></span> \
-               <input class="facetview_freetext span4" name="q" value="" placeholder="search term" autofocus /> \
-               </div> \
-               <div style="display:inline; float:left;margin-left:-2px;" class="btn-group"> \
-                <a style="-moz-border-radius:0px 3px 3px 0px; \
-                -webkit-border-radius:0px 3px 3px 0px; border-radius:0px 3px 3px 0px;" \
-                class="btn dropdown-toggle" data-toggle="dropdown" href="#"> \
-                <i class="icon-cog"></i> <span class="caret"></span></a> \
-                <ul style="margin-left:-110px;" class="dropdown-menu"> \
-                <li><a id="facetview_partial_match" href="">partial match</a></li> \
-                <li><a id="facetview_exact_match" href="">exact match</a></li> \
-                <li><a id="facetview_fuzzy_match" href="">fuzzy match</a></li> \
-                <li><a id="facetview_match_all" href="">match all</a></li> \
-                <li><a id="facetview_match_any" href="">match any</a></li> \
-                <li><a href="#">clear all</a></li> \
-                <li class="divider"></li> \
-                <li><a target="_blank" \
-                href="http://lucene.apache.org/java/2_9_1/queryparsersyntax.html"> \
-                learn more</a></li> \
-                <li class="divider"></li> \
-                <li><a id="facetview_howmany" href="#">results per page ({{HOW_MANY}})</a></li> \
-                </ul> \
-               </div> \
-            ';
-        }
+            thefacetview += '<div class="btn-group"> \
+                <a class="btn btn-small" title="clear all search settings and start again" href=""><i class="icon-remove"></i></a> \
+                <a class="btn btn-small facetview_learnmore" title="click to view search help information" href="#"><b>?</b></a> \
+                <a class="btn btn-small facetview_howmany" title="change result set size" href="#">{{HOW_MANY}}</a>';
+            if ( options.search_sortby.length > 0 ) {
+                thefacetview += '<a class="btn btn-small facetview_order" style="background:#eee; \
+                    padding-right:2px; padding-left:4px; border-right:0;" title="order descending" href="desc"><i class="icon-arrow-down"></i></a>';
+                thefacetview += '<select class="facetview_orderby" style="width:80px; background:#eee; border-left:0px; -moz-border-radius:0; -webkit-border-radius:0; border-radius:0;"> \
+                    <option value="">order by</option>';
+                for ( var item in options.search_sortby ) {
+                    thefacetview += '<option>' + options.search_sortby[item] + '</option>';
+                };
+                thefacetview += '</select>';
+            };
+            if ( options.searchbox_fieldselect.length > 0 ) {
+                thefacetview += '<select class="facetview_searchfield" style="width:100px; background:' + options.searchbox_shade;
+                thefacetview += '; border-left:0px; -moz-border-radius:0; -webkit-border-radius:0; border-radius:0;">';
+                thefacetview += '<option value="">search all</option>';
+                for ( var item in options.searchbox_fieldselect ) {
+                    thefacetview += '<option>' + options.searchbox_fieldselect[item] + '</option>';
+                };
+                thefacetview += '</select>';
+            };
+            thefacetview += '<input class="facetview_freetext span4" style="-moz-border-radius:0 5px 5px 0; \
+                -webkit-border-radius:0 5px 5px 0; border-radius:0 5px 5px 0; margin-left:-1px; background:' + options.searchbox_shade + ';" name="q" \
+                value="" placeholder="search term" autofocus /> \
+            </div>';
+        };
+        thefacetview += thehelp;
         thefacetview += '<div style="clear:both;" class="btn-toolbar" id="facetview_selectedfilters"></div>';
         options.pager_on_top ? thefacetview += '<div class="facetview_metadata" style="margin-top:20px;"></div>' : "";
         thefacetview += options.searchwrap_start + options.searchwrap_end;
@@ -1117,18 +979,21 @@ jQuery.extend({
             thefacetview = thefacetview.replace(/{{HOW_MANY}}/gi,options.paging.size);
             $(obj).append(thefacetview);
 
+            // bind learn more and how many triggers
+            $('.facetview_learnmore').bind('click',learnmore);
+            $('.facetview_howmany').bind('click',howmany);
+            $('.facetview_searchfield').bind('change',searchfield);
+            $('.facetview_orderby').bind('change',orderby);
+            $('.facetview_order').bind('click',order);
+
             if ( options.embedded_search == true ) {
-                // setup search option triggers
-                $('#facetview_partial_match').bind('click',fixmatch);
-                $('#facetview_exact_match').bind('click',fixmatch);
-                $('#facetview_fuzzy_match').bind('click',fixmatch);
-                $('#facetview_match_any').bind('click',fixmatch);
-                $('#facetview_match_all').bind('click',fixmatch);
-                $('#facetview_howmany').bind('click',howmany);
                 // resize the searchbar
-                var thewidth = $('#facetview_searchbar').parent().width();
-                $('#facetview_searchbar').css('width',thewidth - 50 + 'px');
-                $(options.searchbox_class).css('width', thewidth - 88 + 'px');
+                var thewidth = $(options.searchbox_class).parent().parent().width();
+                var subtract = 102;
+                options.searchbox_fieldselect.length > 0 ? subtract = 202 : "";
+                options.search_sortby.length > 0 ? subtract = 202 : "";
+                options.searchbox_fieldselect.length > 0 && options.search_sortby.length > 0 ? subtract = 302 : "";
+                $(options.searchbox_class).css('width',thewidth - subtract + 'px');
             }
 
 
@@ -1194,4 +1059,5 @@ jQuery.extend({
     // facetview options are declared as a function so that they can be retrieved
     // externally (which allows for saving them remotely etc)
     $.fn.facetview.options = {};
+    
 })(jQuery);
diff --git a/local.html b/local.html
index 410d056..b39c7a4 100644
--- a/local.html
+++ b/local.html
@@ -18,10 +18,6 @@
 
   <link rel="stylesheet" href="css/facetview.css">
 
-  <script type="text/javascript" src="vendor/d3/d3.min.js"></script>
-  <script type="text/javascript" src="vendor/d3/d3.geom.min.js?2.1.3"></script>
-  <script type="text/javascript" src="vendor/d3/d3.layout.min.js?2.1.3"></script>
-
   <script type="text/javascript">
 jQuery(document).ready(function($) {
   $('.facet-view-simple').facetview({
diff --git a/simple.html b/simple.html
index 3d0f4bd..e4ddc9e 100644
--- a/simple.html
+++ b/simple.html
@@ -18,10 +18,6 @@
 
   <link rel="stylesheet" href="css/facetview.css">
 
-  <script type="text/javascript" src="vendor/d3/d3.min.js"></script>
-  <script type="text/javascript" src="vendor/d3/d3.geom.min.js?2.1.3"></script>
-  <script type="text/javascript" src="vendor/d3/d3.layout.min.js?2.1.3"></script>
-
   <script type="text/javascript">
 jQuery(document).ready(function($) {
   $('.facet-view-simple').facetview({
diff --git a/vendor/d3/.gitignore b/vendor/d3/.gitignore
deleted file mode 100644
index 90dbb69..0000000
--- a/vendor/d3/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-_site
-node_modules
diff --git a/vendor/d3/.gitmodules b/vendor/d3/.gitmodules
deleted file mode 100644
index e69de29..0000000
diff --git a/vendor/d3/LICENSE b/vendor/d3/LICENSE
deleted file mode 100644
index f154b09..0000000
--- a/vendor/d3/LICENSE
+++ /dev/null
@@ -1,26 +0,0 @@
-Copyright (c) 2010, Michael Bostock
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-* Redistributions of source code must retain the above copyright notice, this
-  list of conditions and the following disclaimer.
-
-* Redistributions in binary form must reproduce the above copyright notice,
-  this list of conditions and the following disclaimer in the documentation
-  and/or other materials provided with the distribution.
-
-* The name Michael Bostock may not be used to endorse or promote products
-  derived from this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL MICHAEL BOSTOCK BE LIABLE FOR ANY DIRECT,
-INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
-OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
-EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/vendor/d3/Makefile b/vendor/d3/Makefile
deleted file mode 100644
index aaf11fe..0000000
--- a/vendor/d3/Makefile
+++ /dev/null
@@ -1,261 +0,0 @@
-# See the README for installation instructions.
-
-NODE_PATH ?= ./node_modules
-JS_COMPILER = $(NODE_PATH)/uglify-js/bin/uglifyjs
-JS_TESTER = $(NODE_PATH)/vows/bin/vows
-
-all: \
-	d3.js \
-	d3.min.js \
-	d3.chart.js \
-	d3.chart.min.js \
-	d3.layout.js \
-	d3.layout.min.js \
-	d3.csv.js \
-	d3.csv.min.js \
-	d3.geo.js \
-	d3.geo.min.js \
-	d3.geom.js \
-	d3.geom.min.js \
-	d3.time.js \
-	d3.time.min.js \
-	package.json
-
-# Modify this rule to build your own custom release.
-# Run `make d3.custom.min.js` to produce the minified version.
-
-d3.custom.js: \
-	d3.js \
-	d3.geom.js \
-	d3.layout.js
-
-.INTERMEDIATE d3.js: \
-	src/start.js \
-	d3.core.js \
-	d3.scale.js \
-	d3.svg.js \
-	d3.behavior.js \
-	src/end.js
-
-d3.core.js: \
-	src/compat/date.js \
-	src/compat/style.js \
-	src/core/core.js \
-	src/core/array.js \
-	src/core/this.js \
-	src/core/functor.js \
-	src/core/rebind.js \
-	src/core/ascending.js \
-	src/core/descending.js \
-	src/core/min.js \
-	src/core/max.js \
-	src/core/sum.js \
-	src/core/quantile.js \
-	src/core/zip.js \
-	src/core/bisect.js \
-	src/core/first.js \
-	src/core/last.js \
-	src/core/nest.js \
-	src/core/keys.js \
-	src/core/values.js \
-	src/core/entries.js \
-	src/core/permute.js \
-	src/core/merge.js \
-	src/core/split.js \
-	src/core/collapse.js \
-	src/core/range.js \
-	src/core/requote.js \
-	src/core/round.js \
-	src/core/xhr.js \
-	src/core/text.js \
-	src/core/json.js \
-	src/core/html.js \
-	src/core/xml.js \
-	src/core/ns.js \
-	src/core/dispatch.js \
-	src/core/format.js \
-	src/core/ease.js \
-	src/core/event.js \
-	src/core/interpolate.js \
-	src/core/uninterpolate.js \
-	src/core/rgb.js \
-	src/core/hsl.js \
-	src/core/selection.js \
-	src/core/selection-select.js \
-	src/core/selection-selectAll.js \
-	src/core/selection-attr.js \
-	src/core/selection-classed.js \
-	src/core/selection-style.js \
-	src/core/selection-property.js \
-	src/core/selection-text.js \
-	src/core/selection-html.js \
-	src/core/selection-append.js \
-	src/core/selection-insert.js \
-	src/core/selection-remove.js \
-	src/core/selection-data.js \
-	src/core/selection-enter.js \
-	src/core/selection-enter-select.js \
-	src/core/selection-filter.js \
-	src/core/selection-map.js \
-	src/core/selection-sort.js \
-	src/core/selection-on.js \
-	src/core/selection-each.js \
-	src/core/selection-call.js \
-	src/core/selection-empty.js \
-	src/core/selection-node.js \
-	src/core/selection-transition.js \
-	src/core/selection-root.js \
-	src/core/transition.js \
-	src/core/transition-select.js \
-	src/core/transition-selectAll.js \
-	src/core/transition-attr.js \
-	src/core/transition-style.js \
-	src/core/transition-text.js \
-	src/core/transition-remove.js \
-	src/core/transition-delay.js \
-	src/core/transition-duration.js \
-	src/core/transition-each.js \
-	src/core/transition-transition.js \
-	src/core/timer.js \
-	src/core/noop.js
-
-d3.scale.js: \
-	src/scale/scale.js \
-	src/scale/nice.js \
-	src/scale/linear.js \
-	src/scale/bilinear.js \
-	src/scale/polylinear.js \
-	src/scale/log.js \
-	src/scale/pow.js \
-	src/scale/sqrt.js \
-	src/scale/ordinal.js \
-	src/scale/category.js \
-	src/scale/quantile.js \
-	src/scale/quantize.js
-
-d3.svg.js: \
-	src/svg/svg.js \
-	src/svg/arc.js \
-	src/svg/line.js \
-	src/svg/line-radial.js \
-	src/svg/area.js \
-	src/svg/area-radial.js \
-	src/svg/chord.js \
-	src/svg/diagonal.js \
-	src/svg/diagonal-radial.js \
-	src/svg/mouse.js \
-	src/svg/touches.js \
-	src/svg/symbol.js \
-	src/svg/axis.js
-
-d3.behavior.js: \
-	src/behavior/behavior.js \
-	src/behavior/drag.js \
-	src/behavior/zoom.js
-
-d3.chart.js: \
-	src/start.js \
-	src/chart/chart.js \
-	src/chart/box.js \
-	src/chart/bullet.js \
-	src/chart/horizon.js \
-	src/chart/qq.js \
-	src/end.js
-
-d3.layout.js: \
-	src/start.js \
-	src/layout/layout.js \
-	src/layout/bundle.js \
-	src/layout/chord.js \
-	src/layout/force.js \
-	src/layout/partition.js \
-	src/layout/pie.js \
-	src/layout/stack.js \
-	src/layout/histogram.js \
-	src/layout/hierarchy.js \
-	src/layout/pack.js \
-	src/layout/cluster.js \
-	src/layout/tree.js \
-	src/layout/treemap.js \
-	src/end.js
-
-d3.geo.js: \
-	src/start.js \
-	src/geo/geo.js \
-	src/geo/azimuthal.js \
-	src/geo/albers.js \
-	src/geo/bonne.js \
-	src/geo/equirectangular.js \
-	src/geo/mercator.js \
-	src/geo/type.js \
-	src/geo/path.js \
-	src/geo/bounds.js \
-	src/geo/circle.js \
-	src/geo/greatArc.js \
-	src/geo/greatCircle.js \
-	src/end.js
-
-d3.csv.js: \
-	src/start.js \
-	src/csv/csv.js \
-	src/csv/parse.js \
-	src/csv/format.js \
-	src/end.js
-
-d3.time.js: \
-	src/start.js \
-	src/time/time.js \
-	src/time/format.js \
-	src/time/format-utc.js \
-	src/time/format-iso.js \
-	src/time/range.js \
-	src/time/second.js \
-	src/time/seconds.js \
-	src/time/minute.js \
-	src/time/minutes.js \
-	src/time/hour.js \
-	src/time/hours.js \
-	src/time/day.js \
-	src/time/days.js \
-	src/time/week.js \
-	src/time/weeks.js \
-	src/time/month.js \
-	src/time/months.js \
-	src/time/year.js \
-	src/time/years.js \
-	src/time/scale.js \
-	src/time/scale-utc.js \
-	src/end.js
-
-d3.geom.js: \
-	src/start.js \
-	src/geom/geom.js \
-	src/geom/contour.js \
-	src/geom/hull.js \
-	src/geom/polygon.js \
-	src/geom/voronoi.js \
-	src/geom/delaunay.js \
-	src/geom/quadtree.js \
-	src/end.js
-
-test: all
-	@$(JS_TESTER)
-
-%.min.js: %.js Makefile
-	@rm -f $@
-	$(JS_COMPILER) < $< > $@
-
-d3.js d3%.js: Makefile
-	@rm -f $@
-	cat $(filter %.js,$^) > $@
-	@chmod a-w $@
-
-install:
-	mkdir -p node_modules
-	npm install
-
-package.json: d3.js
-	node src/package.js > $@
-
-clean:
-	rm -f d3*.js
diff --git a/vendor/d3/d3.chart.js b/vendor/d3/d3.chart.js
deleted file mode 100644
index 281d007..0000000
--- a/vendor/d3/d3.chart.js
+++ /dev/null
@@ -1,984 +0,0 @@
-(function(){d3.chart = {};
-// Inspired by http://informationandvisualization.de/blog/box-plot
-d3.chart.box = function() {
-  var width = 1,
-      height = 1,
-      duration = 0,
-      domain = null,
-      value = Number,
-      whiskers = d3_chart_boxWhiskers,
-      quartiles = d3_chart_boxQuartiles,
-      tickFormat = null;
-
-  // For each small multiple…
-  function box(g) {
-    g.each(function(d, i) {
-      d = d.map(value).sort(d3.ascending);
-      var g = d3.select(this),
-          n = d.length,
-          min = d[0],
-          max = d[n - 1];
-
-      // Compute quartiles. Must return exactly 3 elements.
-      var quartileData = d.quartiles = quartiles(d);
-
-      // Compute whiskers. Must return exactly 2 elements, or null.
-      var whiskerIndices = whiskers && whiskers.call(this, d, i),
-          whiskerData = whiskerIndices && whiskerIndices.map(function(i) { return d[i]; });
-
-      // Compute outliers. If no whiskers are specified, all data are "outliers".
-      // We compute the outliers as indices, so that we can join across transitions!
-      var outlierIndices = whiskerIndices
-          ? d3.range(0, whiskerIndices[0]).concat(d3.range(whiskerIndices[1] + 1, n))
-          : d3.range(n);
-
-      // Compute the new x-scale.
-      var x1 = d3.scale.linear()
-          .domain(domain && domain.call(this, d, i) || [min, max])
-          .range([height, 0]);
-
-      // Retrieve the old x-scale, if this is an update.
-      var x0 = this.__chart__ || d3.scale.linear()
-          .domain([0, Infinity])
-          .range(x1.range());
-
-      // Stash the new scale.
-      this.__chart__ = x1;
-
-      // Note: the box, median, and box tick elements are fixed in number,
-      // so we only have to handle enter and update. In contrast, the outliers
-      // and other elements are variable, so we need to exit them! Variable
-      // elements also fade in and out.
-
-      // Update center line: the vertical line spanning the whiskers.
-      var center = g.selectAll("line.center")
-          .data(whiskerData ? [whiskerData] : []);
-
-      center.enter().insert("svg:line", "rect")
-          .attr("class", "center")
-          .attr("x1", width / 2)
-          .attr("y1", function(d) { return x0(d[0]); })
-          .attr("x2", width / 2)
-          .attr("y2", function(d) { return x0(d[1]); })
-          .style("opacity", 1e-6)
-        .transition()
-          .duration(duration)
-          .style("opacity", 1)
-          .attr("y1", function(d) { return x1(d[0]); })
-          .attr("y2", function(d) { return x1(d[1]); });
-
-      center.transition()
-          .duration(duration)
-          .style("opacity", 1)
-          .attr("y1", function(d) { return x1(d[0]); })
-          .attr("y2", function(d) { return x1(d[1]); });
-
-      center.exit().transition()
-          .duration(duration)
-          .style("opacity", 1e-6)
-          .attr("y1", function(d) { return x1(d[0]); })
-          .attr("y2", function(d) { return x1(d[1]); })
-          .remove();
-
-      // Update innerquartile box.
-      var box = g.selectAll("rect.box")
-          .data([quartileData]);
-
-      box.enter().append("svg:rect")
-          .attr("class", "box")
-          .attr("x", 0)
-          .attr("y", function(d) { return x0(d[2]); })
-          .attr("width", width)
-          .attr("height", function(d) { return x0(d[0]) - x0(d[2]); })
-        .transition()
-          .duration(duration)
-          .attr("y", function(d) { return x1(d[2]); })
-          .attr("height", function(d) { return x1(d[0]) - x1(d[2]); });
-
-      box.transition()
-          .duration(duration)
-          .attr("y", function(d) { return x1(d[2]); })
-          .attr("height", function(d) { return x1(d[0]) - x1(d[2]); });
-
-      // Update median line.
-      var medianLine = g.selectAll("line.median")
-          .data([quartileData[1]]);
-
-      medianLine.enter().append("svg:line")
-          .attr("class", "median")
-          .attr("x1", 0)
-          .attr("y1", x0)
-          .attr("x2", width)
-          .attr("y2", x0)
-        .transition()
-          .duration(duration)
-          .attr("y1", x1)
-          .attr("y2", x1);
-
-      medianLine.transition()
-          .duration(duration)
-          .attr("y1", x1)
-          .attr("y2", x1);
-
-      // Update whiskers.
-      var whisker = g.selectAll("line.whisker")
-          .data(whiskerData || []);
-
-      whisker.enter().insert("svg:line", "circle, text")
-          .attr("class", "whisker")
-          .attr("x1", 0)
-          .attr("y1", x0)
-          .attr("x2", width)
-          .attr("y2", x0)
-          .style("opacity", 1e-6)
-        .transition()
-          .duration(duration)
-          .attr("y1", x1)
-          .attr("y2", x1)
-          .style("opacity", 1);
-
-      whisker.transition()
-          .duration(duration)
-          .attr("y1", x1)
-          .attr("y2", x1)
-          .style("opacity", 1);
-
-      whisker.exit().transition()
-          .duration(duration)
-          .attr("y1", x1)
-          .attr("y2", x1)
-          .style("opacity", 1e-6)
-          .remove();
-
-      // Update outliers.
-      var outlier = g.selectAll("circle.outlier")
-          .data(outlierIndices, Number);
-
-      outlier.enter().insert("svg:circle", "text")
-          .attr("class", "outlier")
-          .attr("r", 5)
-          .attr("cx", width / 2)
-          .attr("cy", function(i) { return x0(d[i]); })
-          .style("opacity", 1e-6)
-        .transition()
-          .duration(duration)
-          .attr("cy", function(i) { return x1(d[i]); })
-          .style("opacity", 1);
-
-      outlier.transition()
-          .duration(duration)
-          .attr("cy", function(i) { return x1(d[i]); })
-          .style("opacity", 1);
-
-      outlier.exit().transition()
-          .duration(duration)
-          .attr("cy", function(i) { return x1(d[i]); })
-          .style("opacity", 1e-6)
-          .remove();
-
-      // Compute the tick format.
-      var format = tickFormat || x1.tickFormat(8);
-
-      // Update box ticks.
-      var boxTick = g.selectAll("text.box")
-          .data(quartileData);
-
-      boxTick.enter().append("svg:text")
-          .attr("class", "box")
-          .attr("dy", ".3em")
-          .attr("dx", function(d, i) { return i & 1 ? 6 : -6 })
-          .attr("x", function(d, i) { return i & 1 ? width : 0 })
-          .attr("y", x0)
-          .attr("text-anchor", function(d, i) { return i & 1 ? "start" : "end"; })
-          .text(format)
-        .transition()
-          .duration(duration)
-          .attr("y", x1);
-
-      boxTick.transition()
-          .duration(duration)
-          .text(format)
-          .attr("y", x1);
-
-      // Update whisker ticks. These are handled separately from the box
-      // ticks because they may or may not exist, and we want don't want
-      // to join box ticks pre-transition with whisker ticks post-.
-      var whiskerTick = g.selectAll("text.whisker")
-          .data(whiskerData || []);
-
-      whiskerTick.enter().append("svg:text")
-          .attr("class", "whisker")
-          .attr("dy", ".3em")
-          .attr("dx", 6)
-          .attr("x", width)
-          .attr("y", x0)
-          .text(format)
-          .style("opacity", 1e-6)
-        .transition()
-          .duration(duration)
-          .attr("y", x1)
-          .style("opacity", 1);
-
-      whiskerTick.transition()
-          .duration(duration)
-          .text(format)
-          .attr("y", x1)
-          .style("opacity", 1);
-
-      whiskerTick.exit().transition()
-          .duration(duration)
-          .attr("y", x1)
-          .style("opacity", 1e-6)
-          .remove();
-    });
-    d3.timer.flush();
-  }
-
-  box.width = function(x) {
-    if (!arguments.length) return width;
-    width = x;
-    return box;
-  };
-
-  box.height = function(x) {
-    if (!arguments.length) return height;
-    height = x;
-    return box;
-  };
-
-  box.tickFormat = function(x) {
-    if (!arguments.length) return tickFormat;
-    tickFormat = x;
-    return box;
-  };
-
-  box.duration = function(x) {
-    if (!arguments.length) return duration;
-    duration = x;
-    return box;
-  };
-
-  box.domain = function(x) {
-    if (!arguments.length) return domain;
-    domain = x == null ? x : d3.functor(x);
-    return box;
-  };
-
-  box.value = function(x) {
-    if (!arguments.length) return value;
-    value = x;
-    return box;
-  };
-
-  box.whiskers = function(x) {
-    if (!arguments.length) return whiskers;
-    whiskers = x;
-    return box;
-  };
-
-  box.quartiles = function(x) {
-    if (!arguments.length) return quartiles;
-    quartiles = x;
-    return box;
-  };
-
-  return box;
-};
-
-function d3_chart_boxWhiskers(d) {
-  return [0, d.length - 1];
-}
-
-function d3_chart_boxQuartiles(d) {
-  return [
-    d3.quantile(d, .25),
-    d3.quantile(d, .5),
-    d3.quantile(d, .75)
-  ];
-}
-// Chart design based on the recommendations of Stephen Few. Implementation
-// based on the work of Clint Ivy, Jamie Love, and Jason Davies.
-// http://projects.instantcognition.com/protovis/bulletchart/
-d3.chart.bullet = function() {
-  var orient = "left", // TODO top & bottom
-      reverse = false,
-      duration = 0,
-      ranges = d3_chart_bulletRanges,
-      markers = d3_chart_bulletMarkers,
-      measures = d3_chart_bulletMeasures,
-      width = 380,
-      height = 30,
-      tickFormat = null;
-
-  // For each small multiple…
-  function bullet(g) {
-    g.each(function(d, i) {
-      var rangez = ranges.call(this, d, i).slice().sort(d3.descending),
-          markerz = markers.call(this, d, i).slice().sort(d3.descending),
-          measurez = measures.call(this, d, i).slice().sort(d3.descending),
-          g = d3.select(this);
-
-      // Compute the new x-scale.
-      var x1 = d3.scale.linear()
-          .domain([0, Math.max(rangez[0], markerz[0], measurez[0])])
-          .range(reverse ? [width, 0] : [0, width]);
-
-      // Retrieve the old x-scale, if this is an update.
-      var x0 = this.__chart__ || d3.scale.linear()
-          .domain([0, Infinity])
-          .range(x1.range());
-
-      // Stash the new scale.
-      this.__chart__ = x1;
-
-      // Derive width-scales from the x-scales.
-      var w0 = d3_chart_bulletWidth(x0),
-          w1 = d3_chart_bulletWidth(x1);
-
-      // Update the range rects.
-      var range = g.selectAll("rect.range")
-          .data(rangez);
-
-      range.enter().append("svg:rect")
-          .attr("class", function(d, i) { return "range s" + i; })
-          .attr("width", w0)
-          .attr("height", height)
-          .attr("x", reverse ? x0 : 0)
-        .transition()
-          .duration(duration)
-          .attr("width", w1)
-          .attr("x", reverse ? x1 : 0);
-
-      range.transition()
-          .duration(duration)
-          .attr("x", reverse ? x1 : 0)
-          .attr("width", w1)
-          .attr("height", height);
-
-      // Update the measure rects.
-      var measure = g.selectAll("rect.measure")
-          .data(measurez);
-
-      measure.enter().append("svg:rect")
-          .attr("class", function(d, i) { return "measure s" + i; })
-          .attr("width", w0)
-          .attr("height", height / 3)
-          .attr("x", reverse ? x0 : 0)
-          .attr("y", height / 3)
-        .transition()
-          .duration(duration)
-          .attr("width", w1)
-          .attr("x", reverse ? x1 : 0);
-
-      measure.transition()
-          .duration(duration)
-          .attr("width", w1)
-          .attr("height", height / 3)
-          .attr("x", reverse ? x1 : 0)
-          .attr("y", height / 3);
-
-      // Update the marker lines.
-      var marker = g.selectAll("line.marker")
-          .data(markerz);
-
-      marker.enter().append("svg:line")
-          .attr("class", "marker")
-          .attr("x1", x0)
-          .attr("x2", x0)
-          .attr("y1", height / 6)
-          .attr("y2", height * 5 / 6)
-        .transition()
-          .duration(duration)
-          .attr("x1", x1)
-          .attr("x2", x1);
-
-      marker.transition()
-          .duration(duration)
-          .attr("x1", x1)
-          .attr("x2", x1)
-          .attr("y1", height / 6)
-          .attr("y2", height * 5 / 6);
-
-      // Compute the tick format.
-      var format = tickFormat || x1.tickFormat(8);
-
-      // Update the tick groups.
-      var tick = g.selectAll("g.tick")
-          .data(x1.ticks(8), function(d) {
-            return this.textContent || format(d);
-          });
-
-      // Initialize the ticks with the old scale, x0.
-      var tickEnter = tick.enter().append("svg:g")
-          .attr("class", "tick")
-          .attr("transform", d3_chart_bulletTranslate(x0))
-          .style("opacity", 1e-6);
-
-      tickEnter.append("svg:line")
-          .attr("y1", height)
-          .attr("y2", height * 7 / 6);
-
-      tickEnter.append("svg:text")
-          .attr("text-anchor", "middle")
-          .attr("dy", "1em")
-          .attr("y", height * 7 / 6)
-          .text(format);
-
-      // Transition the entering ticks to the new scale, x1.
-      tickEnter.transition()
-          .duration(duration)
-          .attr("transform", d3_chart_bulletTranslate(x1))
-          .style("opacity", 1);
-
-      // Transition the updating ticks to the new scale, x1.
-      var tickUpdate = tick.transition()
-          .duration(duration)
-          .attr("transform", d3_chart_bulletTranslate(x1))
-          .style("opacity", 1);
-
-      tickUpdate.select("line")
-          .attr("y1", height)
-          .attr("y2", height * 7 / 6);
-
-      tickUpdate.select("text")
-          .attr("y", height * 7 / 6);
-
-      // Transition the exiting ticks to the new scale, x1.
-      tick.exit().transition()
-          .duration(duration)
-          .attr("transform", d3_chart_bulletTranslate(x1))
-          .style("opacity", 1e-6)
-          .remove();
-    });
-    d3.timer.flush();
-  }
-
-  // left, right, top, bottom
-  bullet.orient = function(x) {
-    if (!arguments.length) return orient;
-    orient = x;
-    reverse = orient == "right" || orient == "bottom";
-    return bullet;
-  };
-
-  // ranges (bad, satisfactory, good)
-  bullet.ranges = function(x) {
-    if (!arguments.length) return ranges;
-    ranges = x;
-    return bullet;
-  };
-
-  // markers (previous, goal)
-  bullet.markers = function(x) {
-    if (!arguments.length) return markers;
-    markers = x;
-    return bullet;
-  };
-
-  // measures (actual, forecast)
-  bullet.measures = function(x) {
-    if (!arguments.length) return measures;
-    measures = x;
-    return bullet;
-  };
-
-  bullet.width = function(x) {
-    if (!arguments.length) return width;
-    width = x;
-    return bullet;
-  };
-
-  bullet.height = function(x) {
-    if (!arguments.length) return height;
-    height = x;
-    return bullet;
-  };
-
-  bullet.tickFormat = function(x) {
-    if (!arguments.length) return tickFormat;
-    tickFormat = x;
-    return bullet;
-  };
-
-  bullet.duration = function(x) {
-    if (!arguments.length) return duration;
-    duration = x;
-    return bullet;
-  };
-
-  return bullet;
-};
-
-function d3_chart_bulletRanges(d) {
-  return d.ranges;
-}
-
-function d3_chart_bulletMarkers(d) {
-  return d.markers;
-}
-
-function d3_chart_bulletMeasures(d) {
-  return d.measures;
-}
-
-function d3_chart_bulletTranslate(x) {
-  return function(d) {
-    return "translate(" + x(d) + ",0)";
-  };
-}
-
-function d3_chart_bulletWidth(x) {
-  var x0 = x(0);
-  return function(d) {
-    return Math.abs(x(d) - x0);
-  };
-}
-// Implements a horizon layout, which is a variation of a single-series
-// area chart where the area is folded into multiple bands. Color is used to
-// encode band, allowing the size of the chart to be reduced significantly
-// without impeding readability. This layout algorithm is based on the work of
-// J. Heer, N. Kong and M. Agrawala in "Sizing the Horizon: The Effects of Chart
-// Size and Layering on the Graphical Perception of Time Series Visualizations",
-// CHI 2009. http://hci.stanford.edu/publications/2009/heer-horizon-chi09.pdf
-d3.chart.horizon = function() {
-  var bands = 1, // between 1 and 5, typically
-      mode = "offset", // or mirror
-      interpolate = "linear", // or basis, monotone, step-before, etc.
-      x = d3_chart_horizonX,
-      y = d3_chart_horizonY,
-      w = 960,
-      h = 40,
-      duration = 0;
-
-  var color = d3.scale.linear()
-      .domain([-1, 0, 1])
-      .range(["#d62728", "#fff", "#1f77b4"]);
-
-  // For each small multiple…
-  function horizon(g) {
-    g.each(function(d, i) {
-      var g = d3.select(this),
-          n = 2 * bands + 1,
-          xMin = Infinity,
-          xMax = -Infinity,
-          yMax = -Infinity,
-          x0, // old x-scale
-          y0, // old y-scale
-          id; // unique id for paths
-
-      // Compute x- and y-values along with extents.
-      var data = d.map(function(d, i) {
-        var xv = x.call(this, d, i),
-            yv = y.call(this, d, i);
-        if (xv < xMin) xMin = xv;
-        if (xv > xMax) xMax = xv;
-        if (-yv > yMax) yMax = -yv;
-        if (yv > yMax) yMax = yv;
-        return [xv, yv];
-      });
-
-      // Compute the new x- and y-scales.
-      var x1 = d3.scale.linear().domain([xMin, xMax]).range([0, w]),
-          y1 = d3.scale.linear().domain([0, yMax]).range([0, h * bands]);
-
-      // Retrieve the old scales, if this is an update.
-      if (this.__chart__) {
-        x0 = this.__chart__.x;
-        y0 = this.__chart__.y;
-        id = this.__chart__.id;
-      } else {
-        x0 = d3.scale.linear().domain([0, Infinity]).range(x1.range());
-        y0 = d3.scale.linear().domain([0, Infinity]).range(y1.range());
-        id = ++d3_chart_horizonId;
-      }
-
-      // We'll use a defs to store the area path and the clip path.
-      var defs = g.selectAll("defs")
-          .data([data]);
-
-      var defsEnter = defs.enter().append("svg:defs");
-
-      // The clip path is a simple rect.
-      defsEnter.append("svg:clipPath")
-          .attr("id", "d3_chart_horizon_clip" + id)
-        .append("svg:rect")
-          .attr("width", w)
-          .attr("height", h);
-
-      defs.select("rect").transition()
-          .duration(duration)
-          .attr("width", w)
-          .attr("height", h);
-
-      // The area path is rendered with our resuable d3.svg.area.
-      defsEnter.append("svg:path")
-          .attr("id", "d3_chart_horizon_path" + id)
-          .attr("d", d3_chart_horizonArea
-          .interpolate(interpolate)
-          .x(function(d) { return x0(d[0]); })
-          .y0(h * bands)
-          .y1(function(d) { return h * bands - y0(d[1]); }))
-        .transition()
-          .duration(duration)
-          .attr("d", d3_chart_horizonArea
-          .x(function(d) { return x1(d[0]); })
-          .y1(function(d) { return h * bands - y1(d[1]); }));
-
-      defs.select("path").transition()
-          .duration(duration)
-          .attr("d", d3_chart_horizonArea);
-
-      // We'll use a container to clip all horizon layers at once.
-      g.selectAll("g")
-          .data([null])
-        .enter().append("svg:g")
-          .attr("clip-path", "url(#d3_chart_horizon_clip" + id + ")");
-
-      // Define the transform function based on the mode.
-      var transform = mode == "offset"
-          ? function(d) { return "translate(0," + (d + (d < 0) - bands) * h + ")"; }
-          : function(d) { return (d < 0 ? "scale(1,-1)" : "") + "translate(0," + (d - bands) * h + ")"; };
-
-      // Instantiate each copy of the path with different transforms.
-      var u = g.select("g").selectAll("use")
-          .data(d3.range(-1, -bands - 1, -1).concat(d3.range(1, bands + 1)), Number);
-
-      // TODO don't fudge the enter transition
-      u.enter().append("svg:use")
-          .attr("xlink:href", "#d3_chart_horizon_path" + id)
-          .attr("transform", function(d) { return transform(d + (d > 0 ? 1 : -1)); })
-          .style("fill", color)
-        .transition()
-          .duration(duration)
-          .attr("transform", transform);
-
-      u.transition()
-          .duration(duration)
-          .attr("transform", transform)
-          .style("fill", color);
-
-      u.exit().transition()
-          .duration(duration)
-          .attr("transform", transform)
-          .remove();
-
-      // Stash the new scales.
-      this.__chart__ = {x: x1, y: y1, id: id};
-    });
-    d3.timer.flush();
-  }
-
-  horizon.duration = function(x) {
-    if (!arguments.length) return duration;
-    duration = +x;
-    return horizon;
-  };
-
-  horizon.bands = function(x) {
-    if (!arguments.length) return bands;
-    bands = +x;
-    color.domain([-bands, 0, bands]);
-    return horizon;
-  };
-
-  horizon.mode = function(x) {
-    if (!arguments.length) return mode;
-    mode = x + "";
-    return horizon;
-  };
-
-  horizon.colors = function(x) {
-    if (!arguments.length) return color.range();
-    color.range(x);
-    return horizon;
-  };
-
-  horizon.interpolate = function(x) {
-    if (!arguments.length) return interpolate;
-    interpolate = x + "";
-    return horizon;
-  };
-
-  horizon.x = function(z) {
-    if (!arguments.length) return x;
-    x = z;
-    return horizon;
-  };
-
-  horizon.y = function(z) {
-    if (!arguments.length) return y;
-    y = z;
-    return horizon;
-  };
-
-  horizon.width = function(x) {
-    if (!arguments.length) return w;
-    w = +x;
-    return horizon;
-  };
-
-  horizon.height = function(x) {
-    if (!arguments.length) return h;
-    h = +x;
-    return horizon;
-  };
-
-  return horizon;
-};
-
-var d3_chart_horizonArea = d3.svg.area(),
-    d3_chart_horizonId = 0;
-
-function d3_chart_horizonX(d) {
-  return d[0];
-}
-
-function d3_chart_horizonY(d) {
-  return d[1];
-}
-// Based on http://vis.stanford.edu/protovis/ex/qqplot.html
-d3.chart.qq = function() {
-  var width = 1,
-      height = 1,
-      duration = 0,
-      domain = null,
-      tickFormat = null,
-      n = 100,
-      x = d3_chart_qqX,
-      y = d3_chart_qqY;
-
-  // For each small multiple…
-  function qq(g) {
-    g.each(function(d, i) {
-      var g = d3.select(this),
-          qx = d3_chart_qqQuantiles(n, x.call(this, d, i)),
-          qy = d3_chart_qqQuantiles(n, y.call(this, d, i)),
-          xd = domain && domain.call(this, d, i) || [d3.min(qx), d3.max(qx)], // new x-domain
-          yd = domain && domain.call(this, d, i) || [d3.min(qy), d3.max(qy)], // new y-domain
-          x0, // old x-scale
-          y0; // old y-scale
-
-      // Compute the new x-scale.
-      var x1 = d3.scale.linear()
-          .domain(xd)
-          .range([0, width]);
-
-      // Compute the new y-scale.
-      var y1 = d3.scale.linear()
-          .domain(yd)
-          .range([height, 0]);
-
-      // Retrieve the old scales, if this is an update.
-      if (this.__chart__) {
-        x0 = this.__chart__.x;
-        y0 = this.__chart__.y;
-      } else {
-        x0 = d3.scale.linear().domain([0, Infinity]).range(x1.range());
-        y0 = d3.scale.linear().domain([0, Infinity]).range(y1.range());
-      }
-
-      // Stash the new scales.
-      this.__chart__ = {x: x1, y: y1};
-
-      // Update diagonal line.
-      var diagonal = g.selectAll("line.diagonal")
-          .data([null]);
-
-      diagonal.enter().append("svg:line")
-          .attr("class", "diagonal")
-          .attr("x1", x1(yd[0]))
-          .attr("y1", y1(xd[0]))
-          .attr("x2", x1(yd[1]))
-          .attr("y2", y1(xd[1]));
-
-      diagonal.transition()
-          .duration(duration)
-          .attr("x1", x1(yd[0]))
-          .attr("y1", y1(xd[0]))
-          .attr("x2", x1(yd[1]))
-          .attr("y2", y1(xd[1]));
-
-      // Update quantile plots.
-      var circle = g.selectAll("circle")
-          .data(d3.range(n).map(function(i) {
-            return {x: qx[i], y: qy[i]};
-          }));
-
-      circle.enter().append("svg:circle")
-          .attr("class", "quantile")
-          .attr("r", 4.5)
-          .attr("cx", function(d) { return x0(d.x); })
-          .attr("cy", function(d) { return y0(d.y); })
-          .style("opacity", 1e-6)
-        .transition()
-          .duration(duration)
-          .attr("cx", function(d) { return x1(d.x); })
-          .attr("cy", function(d) { return y1(d.y); })
-          .style("opacity", 1);
-
-      circle.transition()
-          .duration(duration)
-          .attr("cx", function(d) { return x1(d.x); })
-          .attr("cy", function(d) { return y1(d.y); })
-          .style("opacity", 1);
-
-      circle.exit().transition()
-          .duration(duration)
-          .attr("cx", function(d) { return x1(d.x); })
-          .attr("cy", function(d) { return y1(d.y); })
-          .style("opacity", 1e-6)
-          .remove();
-
-      var xformat = tickFormat || x1.tickFormat(4),
-          yformat = tickFormat || y1.tickFormat(4),
-          tx = function(d) { return "translate(" + x1(d) + "," + height + ")"; },
-          ty = function(d) { return "translate(0," + y1(d) + ")"; };
-
-      // Update x-ticks.
-      var xtick = g.selectAll("g.x.tick")
-          .data(x1.ticks(4), function(d) {
-            return this.textContent || xformat(d);
-          });
-
-      var xtickEnter = xtick.enter().append("svg:g")
-          .attr("class", "x tick")
-          .attr("transform", function(d) { return "translate(" + x0(d) + "," + height + ")"; })
-          .style("opacity", 1e-6);
-
-      xtickEnter.append("svg:line")
-          .attr("y1", 0)
-          .attr("y2", -6);
-
-      xtickEnter.append("svg:text")
-          .attr("text-anchor", "middle")
-          .attr("dy", "1em")
-          .text(xformat);
-
-      // Transition the entering ticks to the new scale, x1.
-      xtickEnter.transition()
-          .duration(duration)
-          .attr("transform", tx)
-          .style("opacity", 1);
-
-      // Transition the updating ticks to the new scale, x1.
-      xtick.transition()
-          .duration(duration)
-          .attr("transform", tx)
-          .style("opacity", 1);
-
-      // Transition the exiting ticks to the new scale, x1.
-      xtick.exit().transition()
-          .duration(duration)
-          .attr("transform", tx)
-          .style("opacity", 1e-6)
-          .remove();
-
-      // Update ticks.
-      var ytick = g.selectAll("g.y.tick")
-          .data(y1.ticks(4), function(d) {
-            return this.textContent || yformat(d);
-          });
-
-      var ytickEnter = ytick.enter().append("svg:g")
-          .attr("class", "y tick")
-          .attr("transform", function(d) { return "translate(0," + y0(d) + ")"; })
-          .style("opacity", 1e-6);
-
-      ytickEnter.append("svg:line")
-          .attr("x1", 0)
-          .attr("x2", 6);
-
-      ytickEnter.append("svg:text")
-          .attr("text-anchor", "end")
-          .attr("dx", "-.5em")
-          .attr("dy", ".3em")
-          .text(yformat);
-
-      // Transition the entering ticks to the new scale, y1.
-      ytickEnter.transition()
-          .duration(duration)
-          .attr("transform", ty)
-          .style("opacity", 1);
-
-      // Transition the updating ticks to the new scale, y1.
-      ytick.transition()
-          .duration(duration)
-          .attr("transform", ty)
-          .style("opacity", 1);
-
-      // Transition the exiting ticks to the new scale, y1.
-      ytick.exit().transition()
-          .duration(duration)
-          .attr("transform", ty)
-          .style("opacity", 1e-6)
-          .remove();
-    });
-  }
-
-  qq.width = function(x) {
-    if (!arguments.length) return width;
-    width = x;
-    return qq;
-  };
-
-  qq.height = function(x) {
-    if (!arguments.length) return height;
-    height = x;
-    return qq;
-  };
-
-  qq.duration = function(x) {
-    if (!arguments.length) return duration;
-    duration = x;
-    return qq;
-  };
-
-  qq.domain = function(x) {
-    if (!arguments.length) return domain;
-    domain = x == null ? x : d3.functor(x);
-    return qq;
-  };
-
-  qq.count = function(z) {
-    if (!arguments.length) return n;
-    n = z;
-    return qq;
-  };
-
-  qq.x = function(z) {
-    if (!arguments.length) return x;
-    x = z;
-    return qq;
-  };
-
-  qq.y = function(z) {
-    if (!arguments.length) return y;
-    y = z;
-    return qq;
-  };
-
-  qq.tickFormat = function(x) {
-    if (!arguments.length) return tickFormat;
-    tickFormat = x;
-    return qq;
-  };
-
-  return qq;
-};
-
-function d3_chart_qqQuantiles(n, values) {
-  var m = values.length - 1;
-  values = values.slice().sort(d3.ascending);
-  return d3.range(n).map(function(i) {
-    return values[~~(i * m / n)];
-  });
-}
-
-function d3_chart_qqX(d) {
-  return d.x;
-}
-
-function d3_chart_qqY(d) {
-  return d.y;
-}
-})();
diff --git a/vendor/d3/d3.chart.min.js b/vendor/d3/d3.chart.min.js
deleted file mode 100644
index 02f3242..0000000
--- a/vendor/d3/d3.chart.min.js
+++ /dev/null
@@ -1 +0,0 @@
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n},n.bands=function(b){if(!arguments.length)return a;a=+b,m.domain([-a,0,a]);return n},n.mode=function(a){if(!arguments.length)return b;b=a+"";return n},n.colors=function(a){if(!arguments.length)return m.range();m.range(a);return n},n.interpolate=function(a){if(!arguments.length)return c;c=a+"";return n},n.x=function(a){if(!arguments.length)return d;d=a;return n},n.y=function(a){if(!arguments.length)return e;e=a;return n},n.width=function(a){if(!arguments.length)return f;f=+a;return n},n.height=function(a){if(!arguments.length)return g;g=+a;return n};return n};var h=d3.svg.area(),i=0;d3.chart.qq=function(){function i(i){i.each(function(i,j){var k=d3.select(this),m=l(f,g.call(this,i,j)),n=l(f,h.call(this,i,j)),o=d&&d.call(this,i,j)||[d3.min(m),d3.max(m)],p=d&&d.call(this,i,j)||[d3.min(n),d3.max(n)],q,r,s=d3.scale.linear().domain(o).range([0,a]),t=d3.scale.linear().domain(p).range([b,0]);this.__chart__?(q=this.__chart__.x,r=this.__chart__.y):(q=d3.scale.linear().domain([0,Infinity]).range(s.range()),r=d3.scale.linear().domain([0,Infinity]).range(t.range())),this.__chart__={x:s,y:t};var u=k.selectAll("line.diagonal").data([null]);u.enter().append("svg:line").attr("class","diagonal").attr("x1",s(p[0])).attr("y1",t(o[0])).attr("x2",s(p[1])).attr("y2",t(o[1])),u.transition().duration(c).attr("x1",s(p[0])).attr("y1",t(o[0])).attr("x2",s(p[1])).attr("y2",t(o[1]));var v=k.selectAll("circle").data(d3.range(f).map(function(a){return{x:m[a],y:n[a]}}));v.enter().append("svg:circle").attr("class","quantile").attr("r",4.5).attr("cx",function(a){return q(a.x)}).attr("cy",function(a){return r(a.y)}).style("opacity",1e-6).transition().duration(c).attr("cx",function(a){return s(a.x)}).attr("cy",function(a){return t(a.y)}).style("opacity",1),v.transition().duration(c).attr("cx",function(a){return s(a.x)}).attr("cy",function(a){return t(a.y)}).style("opacity",1),v.exit().transition().duration(c).attr("cx",function(a){return s(a.x)}).attr("cy",function(a){return t(a.y)}).style("opacity",1e-6).remove();var w=e||s.tickFormat(4),z=e||t.tickFormat(4),A=function(a){return"translate("+s(a)+","+b+")"},B=function(a){return"translate(0,"+t(a)+")"},C=k.selectAll("g.x.tick").data(s.ticks(4),function(a){return this.textContent||w(a)}),D=C.enter().append("svg:g").attr("class","x tick").attr("transform",function(a){return"translate("+q(a)+","+b+")"}).style("opacity",1e-6);D.append("svg:line").attr("y1",0).attr("y2",-6),D.append("svg:text").attr("text-anchor","middle").attr("dy","1em").text(w),D.transition().duration(c).attr("transform",A).style("opacity",1),C.transition().duration(c).attr("transform",A).style("opacity",1),C.exit().transition().duration(c).attr("transform",A).style("opacity",1e-6).remove();var E=k.selectAll("g.y.tick").data(t.ticks(4),function(a){return this.textContent||z(a)}),F=E.enter().append("svg:g").attr("class","y tick").attr("transform",function(a){return"translate(0,"+r(a)+")"}).style("opacity",1e-6);F.append("svg:line").attr("x1",0).attr("x2",6),F.append("svg:text").attr("text-anchor","end").attr("dx","-.5em").attr("dy",".3em").text(z),F.transition().duration(c).attr("transform",B).style("opacity",1),E.transition().duration(c).attr("transform",B).style("opacity",1),E.exit().transition().duration(c).attr("transform",B).style("opacity",1e-6).remove()})}var a=1,b=1,c=0,d=null,e=null,f=100,g=m,h=n;i.width=function(b){if(!arguments.length)return a;a=b;return i},i.height=function(a){if(!arguments.length)return b;b=a;return i},i.duration=function(a){if(!arguments.length)return c;c=a;return i},i.domain=function(a){if(!arguments.length)return d;d=a==null?a:d3.functor(a);return i},i.count=function(a){if(!arguments.length)return f;f=a;return i},i.x=function(a){if(!arguments.length)return g;g=a;return i},i.y=function(a){if(!arguments.length)return h;h=a;return i},i.tickFormat=function(a){if(!arguments.length)return e;e=a;return i};return i}})()
\ No newline at end of file
diff --git a/vendor/d3/d3.csv.js b/vendor/d3/d3.csv.js
deleted file mode 100644
index 7565b83..0000000
--- a/vendor/d3/d3.csv.js
+++ /dev/null
@@ -1,92 +0,0 @@
-(function(){d3.csv = function(url, callback) {
-  d3.text(url, "text/csv", function(text) {
-    callback(text && d3.csv.parse(text));
-  });
-};
-d3.csv.parse = function(text) {
-  var header;
-  return d3.csv.parseRows(text, function(row, i) {
-    if (i) {
-      var o = {}, j = -1, m = header.length;
-      while (++j < m) o[header[j]] = row[j];
-      return o;
-    } else {
-      header = row;
-      return null;
-    }
-  });
-};
-
-d3.csv.parseRows = function(text, f) {
-  var EOL = {}, // sentinel value for end-of-line
-      EOF = {}, // sentinel value for end-of-file
-      rows = [], // output rows
-      re = /\r\n|[,\r\n]/g, // field separator regex
-      n = 0, // the current line number
-      t, // the current token
-      eol; // is the current token followed by EOL?
-
-  re.lastIndex = 0; // work-around bug in FF 3.6
-
-  /** @private Returns the next token. */
-  function token() {
-    if (re.lastIndex >= text.length) return EOF; // special case: end of file
-    if (eol) { eol = false; return EOL; } // special case: end of line
-
-    // special case: quotes
-    var j = re.lastIndex;
-    if (text.charCodeAt(j) === 34) {
-      var i = j;
-      while (i++ < text.length) {
-        if (text.charCodeAt(i) === 34) {
-          if (text.charCodeAt(i + 1) !== 34) break;
-          i++;
-        }
-      }
-      re.lastIndex = i + 2;
-      var c = text.charCodeAt(i + 1);
-      if (c === 13) {
-        eol = true;
-        if (text.charCodeAt(i + 2) === 10) re.lastIndex++;
-      } else if (c === 10) {
-        eol = true;
-      }
-      return text.substring(j + 1, i).replace(/""/g, "\"");
-    }
-
-    // common case
-    var m = re.exec(text);
-    if (m) {
-      eol = m[0].charCodeAt(0) !== 44;
-      return text.substring(j, m.index);
-    }
-    re.lastIndex = text.length;
-    return text.substring(j);
-  }
-
-  while ((t = token()) !== EOF) {
-    var a = [];
-    while ((t !== EOL) && (t !== EOF)) {
-      a.push(t);
-      t = token();
-    }
-    if (f && !(a = f(a, n++))) continue;
-    rows.push(a);
-  }
-
-  return rows;
-};
-d3.csv.format = function(rows) {
-  return rows.map(d3_csv_formatRow).join("\n");
-};
-
-function d3_csv_formatRow(row) {
-  return row.map(d3_csv_formatValue).join(",");
-}
-
-function d3_csv_formatValue(text) {
-  return /[",\n]/.test(text)
-      ? "\"" + text.replace(/\"/g, "\"\"") + "\""
-      : text;
-}
-})();
diff --git a/vendor/d3/d3.csv.min.js b/vendor/d3/d3.csv.min.js
deleted file mode 100644
index b418888..0000000
--- a/vendor/d3/d3.csv.min.js
+++ /dev/null
@@ -1 +0,0 @@
-(function(){function b(a){return/[",\n]/.test(a)?'"'+a.replace(/\"/g,'""')+'"':a}function a(a){return a.map(b).join(",")}d3.csv=function(a,b){d3.text(a,"text/csv",function(a){b(a&&d3.csv.parse(a))})},d3.csv.parse=function(a){var b;return d3.csv.parseRows(a,function(a,c){if(c){var d={},e=-1,f=b.length;while(++e<f)d[b[e]]=a[e];return d}b=a;return null})},d3.csv.parseRows=function(a,b){function j(){if(f.lastIndex>=a.length)return d;if(i){i=!1;return c}var b=f.lastIndex;if(a.charCodeAt(b)===34){var e=b;while(e++<a.length)if(a.charCodeAt(e)===34){if(a.charCodeAt(e+1)!==34)break;e++}f.lastIndex=e+2;var g=a.charCodeAt(e+1);g===13?(i=!0,a.charCodeAt(e+2)===10&&f.lastIndex++):g===10&&(i=!0);return a.substring(b+1,e).replace(/""/g,'"')}var h=f.exec(a);if(h){i=h[0].charCodeAt(0)!==44;return a.substring(b,h.index)}f.lastIndex=a.length;return a.substring(b)}var c={},d={},e=[],f=/\r\n|[,\r\n]/g,g=0,h,i;f.lastIndex=0;while((h=j())!==d){var k=[];while(h!==c&&h!==d)k.push(h),h=j();if(b&&!(k=b(k,g++)))continue;e.push(k)}return e},d3.csv.format=function(b){return b.map(a).join("\n")}})()
\ No newline at end of file
diff --git a/vendor/d3/d3.geo.js b/vendor/d3/d3.geo.js
deleted file mode 100644
index 112afad..0000000
--- a/vendor/d3/d3.geo.js
+++ /dev/null
@@ -1,929 +0,0 @@
-(function(){d3.geo = {};
-
-var d3_geo_radians = Math.PI / 180;
-// TODO clip input coordinates on opposite hemisphere
-d3.geo.azimuthal = function() {
-  var mode = "orthographic", // or stereographic, gnomonic, equidistant or equalarea
-      origin,
-      scale = 200,
-      translate = [480, 250],
-      x0,
-      y0,
-      cy0,
-      sy0;
-
-  function azimuthal(coordinates) {
-    var x1 = coordinates[0] * d3_geo_radians - x0,
-        y1 = coordinates[1] * d3_geo_radians,
-        cx1 = Math.cos(x1),
-        sx1 = Math.sin(x1),
-        cy1 = Math.cos(y1),
-        sy1 = Math.sin(y1),
-        cc = mode !== "orthographic" ? sy0 * sy1 + cy0 * cy1 * cx1 : null,
-        c,
-        k = mode === "stereographic" ? 1 / (1 + cc)
-          : mode === "gnomonic" ? 1 / cc
-          : mode === "equidistant" ? (c = Math.acos(cc), c ? c / Math.sin(c) : 0)
-          : mode === "equalarea" ? Math.sqrt(2 / (1 + cc))
-          : 1,
-        x = k * cy1 * sx1,
-        y = k * (sy0 * cy1 * cx1 - cy0 * sy1);
-    return [
-      scale * x + translate[0],
-      scale * y + translate[1]
-    ];
-  }
-
-  azimuthal.invert = function(coordinates) {
-    var x = (coordinates[0] - translate[0]) / scale,
-        y = (coordinates[1] - translate[1]) / scale,
-        p = Math.sqrt(x * x + y * y),
-        c = mode === "stereographic" ? 2 * Math.atan(p)
-          : mode === "gnomonic" ? Math.atan(p)
-          : mode === "equidistant" ? p
-          : mode === "equalarea" ? 2 * Math.asin(.5 * p)
-          : Math.asin(p),
-        sc = Math.sin(c),
-        cc = Math.cos(c);
-    return [
-      (x0 + Math.atan2(x * sc, p * cy0 * cc + y * sy0 * sc)) / d3_geo_radians,
-      Math.asin(cc * sy0 - (p ? (y * sc * cy0) / p : 0)) / d3_geo_radians
-    ];
-  };
-
-  azimuthal.mode = function(x) {
-    if (!arguments.length) return mode;
-    mode = x + "";
-    return azimuthal;
-  };
-
-  azimuthal.origin = function(x) {
-    if (!arguments.length) return origin;
-    origin = x;
-    x0 = origin[0] * d3_geo_radians;
-    y0 = origin[1] * d3_geo_radians;
-    cy0 = Math.cos(y0);
-    sy0 = Math.sin(y0);
-    return azimuthal;
-  };
-
-  azimuthal.scale = function(x) {
-    if (!arguments.length) return scale;
-    scale = +x;
-    return azimuthal;
-  };
-
-  azimuthal.translate = function(x) {
-    if (!arguments.length) return translate;
-    translate = [+x[0], +x[1]];
-    return azimuthal;
-  };
-
-  return azimuthal.origin([0, 0]);
-};
-// Derived from Tom Carden's Albers implementation for Protovis.
-// http://gist.github.com/476238
-// http://mathworld.wolfram.com/AlbersEqual-AreaConicProjection.html
-
-d3.geo.albers = function() {
-  var origin = [-98, 38],
-      parallels = [29.5, 45.5],
-      scale = 1000,
-      translate = [480, 250],
-      lng0, // d3_geo_radians * origin[0]
-      n,
-      C,
-      p0;
-
-  function albers(coordinates) {
-    var t = n * (d3_geo_radians * coordinates[0] - lng0),
-        p = Math.sqrt(C - 2 * n * Math.sin(d3_geo_radians * coordinates[1])) / n;
-    return [
-      scale * p * Math.sin(t) + translate[0],
-      scale * (p * Math.cos(t) - p0) + translate[1]
-    ];
-  }
-
-  albers.invert = function(coordinates) {
-    var x = (coordinates[0] - translate[0]) / scale,
-        y = (coordinates[1] - translate[1]) / scale,
-        p0y = p0 + y,
-        t = Math.atan2(x, p0y),
-        p = Math.sqrt(x * x + p0y * p0y);
-    return [
-      (lng0 + t / n) / d3_geo_radians,
-      Math.asin((C - p * p * n * n) / (2 * n)) / d3_geo_radians
-    ];
-  };
-
-  function reload() {
-    var phi1 = d3_geo_radians * parallels[0],
-        phi2 = d3_geo_radians * parallels[1],
-        lat0 = d3_geo_radians * origin[1],
-        s = Math.sin(phi1),
-        c = Math.cos(phi1);
-    lng0 = d3_geo_radians * origin[0];
-    n = .5 * (s + Math.sin(phi2));
-    C = c * c + 2 * n * s;
-    p0 = Math.sqrt(C - 2 * n * Math.sin(lat0)) / n;
-    return albers;
-  }
-
-  albers.origin = function(x) {
-    if (!arguments.length) return origin;
-    origin = [+x[0], +x[1]];
-    return reload();
-  };
-
-  albers.parallels = function(x) {
-    if (!arguments.length) return parallels;
-    parallels = [+x[0], +x[1]];
-    return reload();
-  };
-
-  albers.scale = function(x) {
-    if (!arguments.length) return scale;
-    scale = +x;
-    return albers;
-  };
-
-  albers.translate = function(x) {
-    if (!arguments.length) return translate;
-    translate = [+x[0], +x[1]];
-    return albers;
-  };
-
-  return reload();
-};
-
-// A composite projection for the United States, 960x500. The set of standard
-// parallels for each region comes from USGS, which is published here:
-// http://egsc.usgs.gov/isb/pubs/MapProjections/projections.html#albers
-// TODO allow the composite projection to be rescaled?
-d3.geo.albersUsa = function() {
-  var lower48 = d3.geo.albers();
-
-  var alaska = d3.geo.albers()
-      .origin([-160, 60])
-      .parallels([55, 65]);
-
-  var hawaii = d3.geo.albers()
-      .origin([-160, 20])
-      .parallels([8, 18]);
-
-  var puertoRico = d3.geo.albers()
-      .origin([-60, 10])
-      .parallels([8, 18]);
-
-  function albersUsa(coordinates) {
-    var lon = coordinates[0],
-        lat = coordinates[1];
-    return (lat > 50 ? alaska
-        : lon < -140 ? hawaii
-        : lat < 21 ? puertoRico
-        : lower48)(coordinates);
-  }
-
-  albersUsa.scale = function(x) {
-    if (!arguments.length) return lower48.scale();
-    lower48.scale(x);
-    alaska.scale(x * .6);
-    hawaii.scale(x);
-    puertoRico.scale(x * 1.5);
-    return albersUsa.translate(lower48.translate());
-  };
-
-  albersUsa.translate = function(x) {
-    if (!arguments.length) return lower48.translate();
-    var dz = lower48.scale() / 1000,
-        dx = x[0],
-        dy = x[1];
-    lower48.translate(x);
-    alaska.translate([dx - 400 * dz, dy + 170 * dz]);
-    hawaii.translate([dx - 190 * dz, dy + 200 * dz]);
-    puertoRico.translate([dx + 580 * dz, dy + 430 * dz]);
-    return albersUsa;
-  };
-
-  return albersUsa.scale(lower48.scale());
-};
-d3.geo.bonne = function() {
-  var scale = 200,
-      translate = [480, 250],
-      x0, // origin longitude in radians
-      y0, // origin latitude in radians
-      y1, // parallel latitude in radians
-      c1; // cot(y1)
-
-  function bonne(coordinates) {
-    var x = coordinates[0] * d3_geo_radians - x0,
-        y = coordinates[1] * d3_geo_radians - y0;
-    if (y1) {
-      var p = c1 + y1 - y, E = x * Math.cos(y) / p;
-      x = p * Math.sin(E);
-      y = p * Math.cos(E) - c1;
-    } else {
-      x *= Math.cos(y);
-      y *= -1;
-    }
-    return [
-      scale * x + translate[0],
-      scale * y + translate[1]
-    ];
-  }
-
-  bonne.invert = function(coordinates) {
-    var x = (coordinates[0] - translate[0]) / scale,
-        y = (coordinates[1] - translate[1]) / scale;
-    if (y1) {
-      var c = c1 + y, p = Math.sqrt(x * x + c * c);
-      y = c1 + y1 - p;
-      x = x0 + p * Math.atan2(x, c) / Math.cos(y);
-    } else {
-      y *= -1;
-      x /= Math.cos(y);
-    }
-    return [
-      x / d3_geo_radians,
-      y / d3_geo_radians
-    ];
-  };
-
-  // 90° for Werner, 0° for Sinusoidal
-  bonne.parallel = function(x) {
-    if (!arguments.length) return y1 / d3_geo_radians;
-    c1 = 1 / Math.tan(y1 = x * d3_geo_radians);
-    return bonne;
-  };
-
-  bonne.origin = function(x) {
-    if (!arguments.length) return [x0 / d3_geo_radians, y0 / d3_geo_radians];
-    x0 = x[0] * d3_geo_radians;
-    y0 = x[1] * d3_geo_radians;
-    return bonne;
-  };
-
-  bonne.scale = function(x) {
-    if (!arguments.length) return scale;
-    scale = +x;
-    return bonne;
-  };
-
-  bonne.translate = function(x) {
-    if (!arguments.length) return translate;
-    translate = [+x[0], +x[1]];
-    return bonne;
-  };
-
-  return bonne.origin([0, 0]).parallel(45);
-};
-d3.geo.equirectangular = function() {
-  var scale = 500,
-      translate = [480, 250];
-
-  function equirectangular(coordinates) {
-    var x = coordinates[0] / 360,
-        y = -coordinates[1] / 360;
-    return [
-      scale * x + translate[0],
-      scale * y + translate[1]
-    ];
-  }
-
-  equirectangular.invert = function(coordinates) {
-    var x = (coordinates[0] - translate[0]) / scale,
-        y = (coordinates[1] - translate[1]) / scale;
-    return [
-      360 * x,
-      -360 * y
-    ];
-  };
-
-  equirectangular.scale = function(x) {
-    if (!arguments.length) return scale;
-    scale = +x;
-    return equirectangular;
-  };
-
-  equirectangular.translate = function(x) {
-    if (!arguments.length) return translate;
-    translate = [+x[0], +x[1]];
-    return equirectangular;
-  };
-
-  return equirectangular;
-};
-d3.geo.mercator = function() {
-  var scale = 500,
-      translate = [480, 250];
-
-  function mercator(coordinates) {
-    var x = coordinates[0] / 360,
-        y = -(Math.log(Math.tan(Math.PI / 4 + coordinates[1] * d3_geo_radians / 2)) / d3_geo_radians) / 360;
-    return [
-      scale * x + translate[0],
-      scale * Math.max(-.5, Math.min(.5, y)) + translate[1]
-    ];
-  }
-
-  mercator.invert = function(coordinates) {
-    var x = (coordinates[0] - translate[0]) / scale,
-        y = (coordinates[1] - translate[1]) / scale;
-    return [
-      360 * x,
-      2 * Math.atan(Math.exp(-360 * y * d3_geo_radians)) / d3_geo_radians - 90
-    ];
-  };
-
-  mercator.scale = function(x) {
-    if (!arguments.length) return scale;
-    scale = +x;
-    return mercator;
-  };
-
-  mercator.translate = function(x) {
-    if (!arguments.length) return translate;
-    translate = [+x[0], +x[1]];
-    return mercator;
-  };
-
-  return mercator;
-};
-function d3_geo_type(types, defaultValue) {
-  return function(object) {
-    return object && object.type in types ? types[object.type](object) : defaultValue;
-  };
-}
-/**
- * Returns a function that, given a GeoJSON object (e.g., a feature), returns
- * the corresponding SVG path. The function can be customized by overriding the
- * projection. Point features are mapped to circles with a default radius of
- * 4.5px; the radius can be specified either as a constant or a function that
- * is evaluated per object.
- */
-d3.geo.path = function() {
-  var pointRadius = 4.5,
-      pointCircle = d3_path_circle(pointRadius),
-      projection = d3.geo.albersUsa();
-
-  function path(d, i) {
-    if (typeof pointRadius === "function") {
-      pointCircle = d3_path_circle(pointRadius.apply(this, arguments));
-    }
-    return pathType(d) || null;
-  }
-
-  function project(coordinates) {
-    return projection(coordinates).join(",");
-  }
-
-  var pathType = d3_geo_type({
-
-    FeatureCollection: function(o) {
-      var path = [],
-          features = o.features,
-          i = -1, // features.index
-          n = features.length;
-      while (++i < n) path.push(pathType(features[i].geometry));
-      return path.join("");
-    },
-
-    Feature: function(o) {
-      return pathType(o.geometry);
-    },
-
-    Point: function(o) {
-      return "M" + project(o.coordinates) + pointCircle;
-    },
-
-    MultiPoint: function(o) {
-      var path = [],
-          coordinates = o.coordinates,
-          i = -1, // coordinates.index
-          n = coordinates.length;
-      while (++i < n) path.push("M", project(coordinates[i]), pointCircle);
-      return path.join("");
-    },
-
-    LineString: function(o) {
-      var path = ["M"],
-          coordinates = o.coordinates,
-          i = -1, // coordinates.index
-          n = coordinates.length;
-      while (++i < n) path.push(project(coordinates[i]), "L");
-      path.pop();
-      return path.join("");
-    },
-
-    MultiLineString: function(o) {
-      var path = [],
-          coordinates = o.coordinates,
-          i = -1, // coordinates.index
-          n = coordinates.length,
-          subcoordinates, // coordinates[i]
-          j, // subcoordinates.index
-          m; // subcoordinates.length
-      while (++i < n) {
-        subcoordinates = coordinates[i];
-        j = -1;
-        m = subcoordinates.length;
-        path.push("M");
-        while (++j < m) path.push(project(subcoordinates[j]), "L");
-        path.pop();
-      }
-      return path.join("");
-    },
-
-    Polygon: function(o) {
-      var path = [],
-          coordinates = o.coordinates,
-          i = -1, // coordinates.index
-          n = coordinates.length,
-          subcoordinates, // coordinates[i]
-          j, // subcoordinates.index
-          m; // subcoordinates.length
-      while (++i < n) {
-        subcoordinates = coordinates[i];
-        j = -1;
-        if ((m = subcoordinates.length - 1) > 0) {
-          path.push("M");
-          while (++j < m) path.push(project(subcoordinates[j]), "L");
-          path[path.length - 1] = "Z";
-        }
-      }
-      return path.join("");
-    },
-
-    MultiPolygon: function(o) {
-      var path = [],
-          coordinates = o.coordinates,
-          i = -1, // coordinates index
-          n = coordinates.length,
-          subcoordinates, // coordinates[i]
-          j, // subcoordinates index
-          m, // subcoordinates.length
-          subsubcoordinates, // subcoordinates[j]
-          k, // subsubcoordinates index
-          p; // subsubcoordinates.length
-      while (++i < n) {
-        subcoordinates = coordinates[i];
-        j = -1;
-        m = subcoordinates.length;
-        while (++j < m) {
-          subsubcoordinates = subcoordinates[j];
-          k = -1;
-          if ((p = subsubcoordinates.length - 1) > 0) {
-            path.push("M");
-            while (++k < p) path.push(project(subsubcoordinates[k]), "L");
-            path[path.length - 1] = "Z";
-          }
-        }
-      }
-      return path.join("");
-    },
-
-    GeometryCollection: function(o) {
-      var path = [],
-          geometries = o.geometries,
-          i = -1, // geometries index
-          n = geometries.length;
-      while (++i < n) path.push(pathType(geometries[i]));
-      return path.join("");
-    }
-
-  });
-
-  var areaType = path.area = d3_geo_type({
-
-    FeatureCollection: function(o) {
-      var area = 0,
-          features = o.features,
-          i = -1, // features.index
-          n = features.length;
-      while (++i < n) area += areaType(features[i]);
-      return area;
-    },
-
-    Feature: function(o) {
-      return areaType(o.geometry);
-    },
-
-    Polygon: function(o) {
-      return polygonArea(o.coordinates);
-    },
-
-    MultiPolygon: function(o) {
-      var sum = 0,
-          coordinates = o.coordinates,
-          i = -1, // coordinates index
-          n = coordinates.length;
-      while (++i < n) sum += polygonArea(coordinates[i]);
-      return sum;
-    },
-
-    GeometryCollection: function(o) {
-      var sum = 0,
-          geometries = o.geometries,
-          i = -1, // geometries index
-          n = geometries.length;
-      while (++i < n) sum += areaType(geometries[i]);
-      return sum;
-    }
-
-  }, 0);
-
-  function polygonArea(coordinates) {
-    var sum = area(coordinates[0]), // exterior ring
-        i = 0, // coordinates.index
-        n = coordinates.length;
-    while (++i < n) sum -= area(coordinates[i]); // holes
-    return sum;
-  }
-
-  function polygonCentroid(coordinates) {
-    var polygon = d3.geom.polygon(coordinates[0].map(projection)), // exterior ring
-        centroid = polygon.centroid(1),
-        x = centroid[0],
-        y = centroid[1],
-        z = Math.abs(polygon.area()),
-        i = 0, // coordinates index
-        n = coordinates.length;
-    while (++i < n) {
-      polygon = d3.geom.polygon(coordinates[i].map(projection)); // holes
-      centroid = polygon.centroid(1);
-      x -= centroid[0];
-      y -= centroid[1];
-      z -= Math.abs(polygon.area());
-    }
-    return [x, y, 6 * z]; // weighted centroid
-  }
-
-  var centroidType = path.centroid = d3_geo_type({
-
-    // TODO FeatureCollection
-    // TODO Point
-    // TODO MultiPoint
-    // TODO LineString
-    // TODO MultiLineString
-    // TODO GeometryCollection
-
-    Feature: function(o) {
-      return centroidType(o.geometry);
-    },
-
-    Polygon: function(o) {
-      var centroid = polygonCentroid(o.coordinates);
-      return [centroid[0] / centroid[2], centroid[1] / centroid[2]];
-    },
-
-    MultiPolygon: function(o) {
-      var area = 0,
-          coordinates = o.coordinates,
-          centroid,
-          x = 0,
-          y = 0,
-          z = 0,
-          i = -1, // coordinates index
-          n = coordinates.length;
-      while (++i < n) {
-        centroid = polygonCentroid(coordinates[i]);
-        x += centroid[0];
-        y += centroid[1];
-        z += centroid[2];
-      }
-      return [x / z, y / z];
-    }
-
-  });
-
-  function area(coordinates) {
-    return Math.abs(d3.geom.polygon(coordinates.map(projection)).area());
-  }
-
-  path.projection = function(x) {
-    projection = x;
-    return path;
-  };
-
-  path.pointRadius = function(x) {
-    if (typeof x === "function") pointRadius = x;
-    else {
-      pointRadius = +x;
-      pointCircle = d3_path_circle(pointRadius);
-    }
-    return path;
-  };
-
-  return path;
-};
-
-function d3_path_circle(radius) {
-  return "m0," + radius
-      + "a" + radius + "," + radius + " 0 1,1 0," + (-2 * radius)
-      + "a" + radius + "," + radius + " 0 1,1 0," + (+2 * radius)
-      + "z";
-}
-/**
- * Given a GeoJSON object, returns the corresponding bounding box. The bounding
- * box is represented by a two-dimensional array: [[left, bottom], [right,
- * top]], where left is the minimum longitude, bottom is the minimum latitude,
- * right is maximum longitude, and top is the maximum latitude.
- */
-d3.geo.bounds = function(feature) {
-  var left = Infinity,
-      bottom = Infinity,
-      right = -Infinity,
-      top = -Infinity;
-  d3_geo_bounds(feature, function(x, y) {
-    if (x < left) left = x;
-    if (x > right) right = x;
-    if (y < bottom) bottom = y;
-    if (y > top) top = y;
-  });
-  return [[left, bottom], [right, top]];
-};
-
-function d3_geo_bounds(o, f) {
-  if (o.type in d3_geo_boundsTypes) d3_geo_boundsTypes[o.type](o, f);
-}
-
-var d3_geo_boundsTypes = {
-  Feature: d3_geo_boundsFeature,
-  FeatureCollection: d3_geo_boundsFeatureCollection,
-  LineString: d3_geo_boundsLineString,
-  MultiLineString: d3_geo_boundsMultiLineString,
-  MultiPoint: d3_geo_boundsLineString,
-  MultiPolygon: d3_geo_boundsMultiPolygon,
-  Point: d3_geo_boundsPoint,
-  Polygon: d3_geo_boundsPolygon
-};
-
-function d3_geo_boundsFeature(o, f) {
-  d3_geo_bounds(o.geometry, f);
-}
-
-function d3_geo_boundsFeatureCollection(o, f) {
-  for (var a = o.features, i = 0, n = a.length; i < n; i++) {
-    d3_geo_bounds(a[i].geometry, f);
-  }
-}
-
-function d3_geo_boundsLineString(o, f) {
-  for (var a = o.coordinates, i = 0, n = a.length; i < n; i++) {
-    f.apply(null, a[i]);
-  }
-}
-
-function d3_geo_boundsMultiLineString(o, f) {
-  for (var a = o.coordinates, i = 0, n = a.length; i < n; i++) {
-    for (var b = a[i], j = 0, m = b.length; j < m; j++) {
-      f.apply(null, b[j]);
-    }
-  }
-}
-
-function d3_geo_boundsMultiPolygon(o, f) {
-  for (var a = o.coordinates, i = 0, n = a.length; i < n; i++) {
-    for (var b = a[i][0], j = 0, m = b.length; j < m; j++) {
-      f.apply(null, b[j]);
-    }
-  }
-}
-
-function d3_geo_boundsPoint(o, f) {
-  f.apply(null, o.coordinates);
-}
-
-function d3_geo_boundsPolygon(o, f) {
-  for (var a = o.coordinates[0], i = 0, n = a.length; i < n; i++) {
-    f.apply(null, a[i]);
-  }
-}
-// TODO breakAtDateLine?
-
-d3.geo.circle = function() {
-  var origin = [0, 0],
-      degrees = 90 - 1e-2,
-      radians = degrees * d3_geo_radians,
-      arc = d3.geo.greatArc().target(Object);
-
-  function circle() {
-    // TODO render a circle as a Polygon
-  }
-
-  function visible(point) {
-    return arc.distance(point) < radians;
-  }
-
-  circle.clip = function(d) {
-    arc.source(typeof origin === "function" ? origin.apply(this, arguments) : origin);
-    return clipType(d);
-  };
-
-  var clipType = d3_geo_type({
-
-    FeatureCollection: function(o) {
-      var features = o.features.map(clipType).filter(Object);
-      return features && (o = Object.create(o), o.features = features, o);
-    },
-
-    Feature: function(o) {
-      var geometry = clipType(o.geometry);
-      return geometry && (o = Object.create(o), o.geometry = geometry, o);
-    },
-
-    Point: function(o) {
-      return visible(o.coordinates) && o;
-    },
-
-    MultiPoint: function(o) {
-      var coordinates = o.coordinates.filter(visible);
-      return coordinates.length && {
-        type: o.type,
-        coordinates: coordinates
-      };
-    },
-
-    LineString: function(o) {
-      var coordinates = clip(o.coordinates);
-      return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o);
-    },
-
-    MultiLineString: function(o) {
-      var coordinates = o.coordinates.map(clip).filter(function(d) { return d.length; });
-      return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o);
-    },
-
-    Polygon: function(o) {
-      var coordinates = o.coordinates.map(clip);
-      return coordinates[0].length && (o = Object.create(o), o.coordinates = coordinates, o);
-    },
-
-    MultiPolygon: function(o) {
-      var coordinates = o.coordinates.map(function(d) { return d.map(clip); }).filter(function(d) { return d[0].length; });
-      return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o);
-    },
-
-    GeometryCollection: function(o) {
-      var geometries = o.geometries.map(clipType).filter(Object);
-      return geometries.length && (o = Object.create(o), o.geometries = geometries, o);
-    }
-
-  });
-
-  function clip(coordinates) {
-    var i = -1,
-        n = coordinates.length,
-        clipped = [],
-        p0,
-        p1,
-        p2,
-        d0,
-        d1;
-
-    while (++i < n) {
-      d1 = arc.distance(p2 = coordinates[i]);
-      if (d1 < radians) {
-        if (p1) clipped.push(d3_geo_greatArcInterpolate(p1, p2)((d0 - radians) / (d0 - d1)));
-        clipped.push(p2);
-        p0 = p1 = null;
-      } else {
-        p1 = p2;
-        if (!p0 && clipped.length) {
-          clipped.push(d3_geo_greatArcInterpolate(clipped[clipped.length - 1], p1)((radians - d0) / (d1 - d0)));
-          p0 = p1;
-        }
-      }
-      d0 = d1;
-    }
-
-    if (p1 && clipped.length) {
-      d1 = arc.distance(p2 = clipped[0]);
-      clipped.push(d3_geo_greatArcInterpolate(p1, p2)((d0 - radians) / (d0 - d1)));
-    }
-
-    return resample(clipped);
-  }
-
-  // Resample coordinates, creating great arcs between each.
-  function resample(coordinates) {
-    var i = 0,
-        n = coordinates.length,
-        j,
-        m,
-        resampled = n ? [coordinates[0]] : coordinates,
-        resamples,
-        origin = arc.source();
-
-    while (++i < n) {
-      resamples = arc.source(coordinates[i - 1])(coordinates[i]).coordinates;
-      for (j = 0, m = resamples.length; ++j < m;) resampled.push(resamples[j]);
-    }
-
-    arc.source(origin);
-    return resampled;
-  }
-
-  circle.origin = function(x) {
-    if (!arguments.length) return origin;
-    origin = x;
-    return circle;
-  };
-
-  circle.angle = function(x) {
-    if (!arguments.length) return degrees;
-    radians = (degrees = +x) * d3_geo_radians;
-    return circle;
-  };
-
-  // Precision is specified in degrees.
-  circle.precision = function(x) {
-    if (!arguments.length) return arc.precision();
-    arc.precision(x);
-    return circle;
-  };
-
-  return circle;
-}
-d3.geo.greatArc = function() {
-  var source = d3_geo_greatArcSource,
-      target = d3_geo_greatArcTarget,
-      precision = 6 * d3_geo_radians;
-
-  function greatArc() {
-    var a = typeof source === "function" ? source.apply(this, arguments) : source,
-        b = typeof target === "function" ? target.apply(this, arguments) : target,
-        i = d3_geo_greatArcInterpolate(a, b),
-        dt = precision / i.d,
-        t = 0,
-        coordinates = [a];
-    while ((t += dt) < 1) coordinates.push(i(t));
-    coordinates.push(b);
-    return {
-      type: "LineString",
-      coordinates: coordinates
-    };
-  }
-
-  // Length returned in radians; multiply by radius for distance.
-  greatArc.distance = function() {
-    var a = typeof source === "function" ? source.apply(this, arguments) : source,
-        b = typeof target === "function" ? target.apply(this, arguments) : target;
-     return d3_geo_greatArcInterpolate(a, b).d;
-  };
-
-  greatArc.source = function(x) {
-    if (!arguments.length) return source;
-    source = x;
-    return greatArc;
-  };
-
-  greatArc.target = function(x) {
-    if (!arguments.length) return target;
-    target = x;
-    return greatArc;
-  };
-
-  // Precision is specified in degrees.
-  greatArc.precision = function(x) {
-    if (!arguments.length) return precision / d3_geo_radians;
-    precision = x * d3_geo_radians;
-    return greatArc;
-  };
-
-  return greatArc;
-};
-
-function d3_geo_greatArcSource(d) {
-  return d.source;
-}
-
-function d3_geo_greatArcTarget(d) {
-  return d.target;
-}
-
-function d3_geo_greatArcInterpolate(a, b) {
-  var x0 = a[0] * d3_geo_radians, cx0 = Math.cos(x0), sx0 = Math.sin(x0),
-      y0 = a[1] * d3_geo_radians, cy0 = Math.cos(y0), sy0 = Math.sin(y0),
-      x1 = b[0] * d3_geo_radians, cx1 = Math.cos(x1), sx1 = Math.sin(x1),
-      y1 = b[1] * d3_geo_radians, cy1 = Math.cos(y1), sy1 = Math.sin(y1),
-      d = interpolate.d = Math.acos(Math.max(-1, Math.min(1, sy0 * sy1 + cy0 * cy1 * Math.cos(x1 - x0)))),
-      sd = Math.sin(d);
-
-  // From http://williams.best.vwh.net/avform.htm#Intermediate
-  function interpolate(t) {
-    var A = Math.sin(d - (t *= d)) / sd,
-        B = Math.sin(t) / sd,
-        x = A * cy0 * cx0 + B * cy1 * cx1,
-        y = A * cy0 * sx0 + B * cy1 * sx1,
-        z = A * sy0       + B * sy1;
-    return [
-      Math.atan2(y, x) / d3_geo_radians,
-      Math.atan2(z, Math.sqrt(x * x + y * y)) / d3_geo_radians
-    ];
-  }
-
-  return interpolate;
-}
-d3.geo.greatCircle = d3.geo.circle;
-})();
diff --git a/vendor/d3/d3.geo.min.js b/vendor/d3/d3.geo.min.js
deleted file mode 100644
index 25e4aaf..0000000
--- a/vendor/d3/d3.geo.min.js
+++ /dev/null
@@ -1 +0,0 @@
-(function(){function o(b,c){function r(b){var c=Math.sin(p-(b*=p))/q,d=Math.sin(b)/q,g=c*h*e+d*n*k,j=c*h*f+d*n*l,m=c*i+d*o;return[Math.atan2(j,g)/a,Math.atan2(m,Math.sqrt(g*g+j*j))/a]}var d=b[0]*a,e=Math.cos(d),f=Math.sin(d),g=b[1]*a,h=Math.cos(g),i=Math.sin(g),j=c[0]*a,k=Math.cos(j),l=Math.sin(j),m=c[1]*a,n=Math.cos(m),o=Math.sin(m),p=r.d=Math.acos(Math.max(-1,Math.min(1,i*o+h*n*Math.cos(j-d)))),q=Math.sin(p);return r}function n(a){return a.target}function m(a){return a.source}function l(a,b){for(var c=a.coordinates[0],d=0,e=c.length;d<e;d++)b.apply(null,c[d])}function k(a,b){b.apply(null,a.coordinates)}function j(a,b){for(var c=a.coordinates,d=0,e=c.length;d<e;d++)for(var f=c[d][0],g=0,h=f.length;g<h;g++)b.apply(null,f[g])}function i(a,b){for(var c=a.coordinates,d=0,e=c.length;d<e;d++)for(var f=c[d],g=0,h=f.length;g<h;g++)b.apply(null,f[g])}function h(a,b){for(var c=a.coordinates,d=0,e=c.length;d<e;d++)b.apply(null,c[d])}function g(a,b){for(var c=a.features,e=0,f=c.length;e<f;e++)d(c[e].geometry,b)}function f(a,b){d(a.geometry,b)}function d(a,b){a.type in e&&e[a.type](a,b)}function c(a){return"m0,"+a+"a"+a+","+a+" 0 1,1 0,"+ -2*a+"a"+a+","+a+" 0 1,1 0,"+2*a+"z"}function b(a,b){return function(c){return c&&c.type in a?a[c.type](c):b}}d3.geo={};var a=Math.PI/180;d3.geo.azimuthal=function(){function j(c){var g=c[0]*a-f,j=c[1]*a,k=Math.cos(g),l=Math.sin(g),m=Math.cos(j),n=Math.sin(j),o=b!=="orthographic"?i*n+h*m*k:null,p,q=b==="stereographic"?1/(1+o):b==="gnomonic"?1/o:b==="equidistant"?(p=Math.acos(o),p?p/Math.sin(p):0):b==="equalarea"?Math.sqrt(2/(1+o)):1,r=q*m*l,s=q*(i*m*k-h*n);return[d*r+e[0],d*s+e[1]]}var b="orthographic",c,d=200,e=[480,250],f,g,h,i;j.invert=function(c){var g=(c[0]-e[0])/d,j=(c[1]-e[1])/d,k=Math.sqrt(g*g+j*j),l=b==="stereographic"?2*Math.atan(k):b==="gnomonic"?Math.atan(k):b==="equidistant"?k:b==="equalarea"?2*Math.asin(.5*k):Math.asin(k),m=Math.sin(l),n=Math.cos(l);return[(f+Math.atan2(g*m,k*h*n+j*i*m))/a,Math.asin(n*i-(k?j*m*h/k:0))/a]},j.mode=function(a){if(!arguments.length)return b;b=a+"";return j},j.origin=function(b){if(!arguments.length)return c;c=b,f=c[0]*a,g=c[1]*a,h=Math.cos(g),i=Math.sin(g);return j},j.scale=function(a){if(!arguments.length)return d;d=+a;return j},j.translate=function(a){if(!arguments.length)return e;e=[+a[0],+a[1]];return j};return j.origin([0,0])},d3.geo.albers=function(){function k(){var d=a*c[0],e=a*c[1],k=a*b[1],l=Math.sin(d),m=Math.cos(d);f=a*b[0],g=.5*(l+Math.sin(e)),h=m*m+2*g*l,i=Math.sqrt(h-2*g*Math.sin(k))/g;return j}function j(b){var c=g*(a*b[0]-f),j=Math.sqrt(h-2*g*Math.sin(a*b[1]))/g;return[d*j*Math.sin(c)+e[0],d*(j*Math.cos(c)-i)+e[1]]}var b=[-98,38],c=[29.5,45.5],d=1e3,e=[480,250],f,g,h,i;j.invert=function(b){var c=(b[0]-e[0])/d,j=(b[1]-e[1])/d,k=i+j,l=Math.atan2(c,k),m=Math.sqrt(c*c+k*k);return[(f+l/g)/a,Math.asin((h-m*m*g*g)/(2*g))/a]},j.origin=function(a){if(!arguments.length)return b;b=[+a[0],+a[1]];return k()},j.parallels=function(a){if(!arguments.length)return c;c=[+a[0],+a[1]];return k()},j.scale=function(a){if(!arguments.length)return d;d=+a;return j},j.translate=function(a){if(!arguments.length)return e;e=[+a[0],+a[1]];return j};return k()},d3.geo.albersUsa=function(){function e(e){var f=e[0],g=e[1];return(g>50?b:f<-140?c:g<21?d:a)(e)}var a=d3.geo.albers(),b=d3.geo.albers().origin([-160,60]).parallels([55,65]),c=d3.geo.albers().origin([-160,20]).parallels([8,18]),d=d3.geo.albers().origin([-60,10]).parallels([8,18]);e.scale=function(f){if(!arguments.length)return a.scale();a.scale(f),b.scale(f*.6),c.scale(f),d.scale(f*1.5);return e.translate(a.translate())},e.translate=function(f){if(!arguments.length)return a.translate();var g=a.scale()/1e3,h=f[0],i=f[1];a.translate(f),b.translate([h-400*g,i+170*g]),c.translate([h-190*g,i+200*g]),d.translate([h+580*g,i+430*g]);return e};return e.scale(a.scale())},d3.geo.bonne=function(){function h(h){var i=h[0]*a-d,j=h[1]*a-e;if(f){var k=g+f-j,l=i*Math.cos(j)/k;i=k*Math.sin(l),j=k*Math.cos(l)-g}else i*=Math.cos(j),j*=-1;return[b*i+c[0],b*j+c[1]]}var b=200,c=[480,250],d,e,f,g;h.invert=function(e){var h=(e[0]-c[0])/b,i=(e[1]-c[1])/b;if(f){var j=g+i,k=Math.sqrt(h*h+j*j);i=g+f-k,h=d+k*Math.atan2(h,j)/Math.cos(i)}else i*=-1,h/=Math.cos(i);return[h/a,i/a]},h.parallel=function(b){if(!arguments.length)return f/a;g=1/Math.tan(f=b*a);return h},h.origin=function(b){if(!arguments.length)return[d/a,e/a];d=b[0]*a,e=b[1]*a;return h},h.scale=function(a){if(!arguments.length)return b;b=+a;return h},h.translate=function(a){if(!arguments.length)return c;c=[+a[0],+a[1]];return h};return h.origin([0,0]).parallel(45)},d3.geo.equirectangular=function(){function c(c){var d=c[0]/360,e=-c[1]/360;return[a*d+b[0],a*e+b[1]]}var a=500,b=[480,250];c.invert=function(c){var d=(c[0]-b[0])/a,e=(c[1]-b[1])/a;return[360*d,-360*e]},c.scale=function(b){if(!arguments.length)return a;a=+b;return c},c.translate=function(a){if(!arguments.length)return b;b=[+a[0],+a[1]];return c};return c},d3.geo.mercator=function(){function d(d){var e=d[0]/360,f=-(Math.log(Math.tan(Math.PI/4+d[1]*a/2))/a)/360;return[b*e+c[0],b*Math.max(-0.5,Math.min(.5,f))+c[1]]}var b=500,c=[480,250];d.invert=function(d){var e=(d[0]-c[0])/b,f=(d[1]-c[1])/b;return[360*e,2*Math.atan(Math.exp(-360*f*a))/a-90]},d.scale=function(a){if(!arguments.length)return b;b=+a;return d},d.translate=function(a){if(!arguments.length)return c;c=[+a[0],+a[1]];return d};return d},d3.geo.path=function(){function m(a){return Math.abs(d3.geom.polygon(a.map(e)).area())}function k(a){var b=d3.geom.polygon(a[0].map(e)),c=b.centroid(1),d=c[0],f=c[1],g=Math.abs(b.area()),h=0,i=a.length;while(++h<i)b=d3.geom.polygon(a[h].map(e)),c=b.centroid(1),d-=c[0],f-=c[1],g-=Math.abs(b.area());return[d,f,6*g]}function j(a){var b=m(a[0]),c=0,d=a.length;while(++c<d)b-=m(a[c]);return b}function g(a){return e(a).join(",")}function f(b,e){typeof a=="function"&&(d=c(a.apply(this,arguments)));return h(b)||null}var a=4.5,d=c(a),e=d3.geo.albersUsa(),h=b({FeatureCollection:function(a){var b=[],c=a.features,d=-1,e=c.length;while(++d<e)b.push(h(c[d].geometry));return b.join("")},Feature:function(a){return h(a.geometry)},Point:function(a){return"M"+g(a.coordinates)+d},MultiPoint:function(a){var b=[],c=a.coordinates,e=-1,f=c.length;while(++e<f)b.push("M",g(c[e]),d);return b.join("")},LineString:function(a){var b=["M"],c=a.coordinates,d=-1,e=c.length;while(++d<e)b.push(g(c[d]),"L");b.pop();return b.join("")},MultiLineString:function(a){var b=[],c=a.coordinates,d=-1,e=c.length,f,h,i;while(++d<e){f=c[d],h=-1,i=f.length,b.push("M");while(++h<i)b.push(g(f[h]),"L");b.pop()}return b.join("")},Polygon:function(a){var b=[],c=a.coordinates,d=-1,e=c.length,f,h,i;while(++d<e){f=c[d],h=-1;if((i=f.length-1)>0){b.push("M");while(++h<i)b.push(g(f[h]),"L");b[b.length-1]="Z"}}return b.join("")},MultiPolygon:function(a){var b=[],c=a.coordinates,d=-1,e=c.length,f,h,i,j,k,l;while(++d<e){f=c[d],h=-1,i=f.length;while(++h<i){j=f[h],k=-1;if((l=j.length-1)>0){b.push("M");while(++k<l)b.push(g(j[k]),"L");b[b.length-1]="Z"}}}return b.join("")},GeometryCollection:function(a){var b=[],c=a.geometries,d=-1,e=c.length;while(++d<e)b.push(h(c[d]));return b.join("")}}),i=f.area=b({FeatureCollection:function(a){var b=0,c=a.features,d=-1,e=c.length;while(++d<e)b+=i(c[d]);return b},Feature:function(a){return i(a.geometry)},Polygon:function(a){return j(a.coordinates)},MultiPolygon:function(a){var b=0,c=a.coordinates,d=-1,e=c.length;while(++d<e)b+=j(c[d]);return b},GeometryCollection:function(a){var b=0,c=a.geometries,d=-1,e=c.length;while(++d<e)b+=i(c[d]);return b}},0),l=f.centroid=b({Feature:function(a){return l(a.geometry)},Polygon:function(a){var b=k(a.coordinates);return[b[0]/b[2],b[1]/b[2]]},MultiPolygon:function(a){var b=0,c=a.coordinates,d,e=0,f=0,g=0,h=-1,i=c.length;while(++h<i)d=k(c[h]),e+=d[0],f+=d[1],g+=d[2];return[e/g,f/g]}});f.projection=function(a){e=a;return f},f.pointRadius=function(b){typeof b=="function"?a=b:(a=+b,d=c(a));return f};return f},d3.geo.bounds=function(a){var b=Infinity,c=Infinity,e=-Infinity,f=-Infinity;d(a,function(a,d){a<b&&(b=a),a>e&&(e=a),d<c&&(c=d),d>f&&(f=d)});return[[b,c],[e,f]]};var e={Feature:f,FeatureCollection:g,LineString:h,MultiLineString:i,MultiPoint:h,MultiPolygon:j,Point:k,Polygon:l};d3.geo.circle=function(){function k(a){var b=0,c=a.length,d,e,g=c?[a[0]]:a,h,i=f.source();while(++b<c){h=f.source(a[b-1])(a[b]).coordinates;for(d=0,e=h.length;++d<e;)g.push(h[d])}f.source(i);return g}function j(a){var b=-1,c=a.length,d=[],g,h,i,j,l;while(++b<c)l=f.distance(i=a[b]),l<e?(h&&d.push(o(h,i)((j-e)/(j-l))),d.push(i),g=h=null):(h=i,!g&&d.length&&(d.push(o(d[d.length-1],h)((e-j)/(l-j))),g=h)),j=l;h&&d.length&&(l=f.distance(i=d[0]),d.push(o(h,i)((j-e)/(j-l))));return k(d)}function h(a){return f.distance(a)<e}function g(){}var c=[0,0],d=89.99,e=d*a,f=d3.geo.greatArc().target(Object);g.clip=function(a){f.source(typeof c=="function"?c.apply(this,arguments):c);return i(a)};var i=b({FeatureCollection:function(a){var b=a.features.map(i).filter(Object);return b&&(a=Object.create(a),a.features=b,a)},Feature:function(a){var b=i(a.geometry);return b&&(a=Object.create(a),a.geometry=b,a)},Point:function(a){return h(a.coordinates)&&a},MultiPoint:function(a){var b=a.coordinates.filter(h);return b.length&&{type:a.type,coordinates:b}},LineString:function(a){var b=j(a.coordinates);return b.length&&(a=Object.create(a),a.coordinates=b,a)},MultiLineString:function(a){var b=a.coordinates.map(j).filter(function(a){return a.length});return b.length&&(a=Object.create(a),a.coordinates=b,a)},Polygon:function(a){var b=a.coordinates.map(j);return b[0].length&&(a=Object.create(a),a.coordinates=b,a)},MultiPolygon:function(a){var b=a.coordinates.map(function(a){return a.map(j)}).filter(function(a){return a[0].length});return b.length&&(a=Object.create(a),a.coordinates=b,a)},GeometryCollection:function(a){var b=a.geometries.map(i).filter(Object);return b.length&&(a=Object.create(a),a.geometries=b,a)}});g.origin=function(a){if(!arguments.length)return c;c=a;return g},g.angle=function(b){if(!arguments.length)return d;e=(d=+b)*a;return g},g.precision=function(a){if(!arguments.length)return f.precision();f.precision(a);return g};return g},d3.geo.greatArc=function(){function e(){var a=typeof b=="function"?b.apply(this,arguments):b,e=typeof c=="function"?c.apply(this,arguments):c,f=o(a,e),g=d/f.d,h=0,i=[a];while((h+=g)<1)i.push(f(h));i.push(e);return{type:"LineString",coordinates:i}}var b=m,c=n,d=6*a;e.distance=function(){var a=typeof b=="function"?b.apply(this,arguments):b,d=typeof c=="function"?c.apply(this,arguments):c;return o(a,d).d},e.source=function(a){if(!arguments.length)return b;b=a;return e},e.target=function(a){if(!arguments.length)return c;c=a;return e},e.precision=function(b){if(!arguments.length)return d/a;d=b*a;return e};return e},d3.geo.greatCircle=d3.geo.circle})()
\ No newline at end of file
diff --git a/vendor/d3/d3.geom.js b/vendor/d3/d3.geom.js
deleted file mode 100644
index 9d8bc31..0000000
--- a/vendor/d3/d3.geom.js
+++ /dev/null
@@ -1,825 +0,0 @@
-(function(){d3.geom = {};
-/**
- * Computes a contour for a given input grid function using the <a
- * href="http://en.wikipedia.org/wiki/Marching_squares">marching
- * squares</a> algorithm. Returns the contour polygon as an array of points.
- *
- * @param grid a two-input function(x, y) that returns true for values
- * inside the contour and false for values outside the contour.
- * @param start an optional starting point [x, y] on the grid.
- * @returns polygon [[x1, y1], [x2, y2], …]
- */
-d3.geom.contour = function(grid, start) {
-  var s = start || d3_geom_contourStart(grid), // starting point
-      c = [],    // contour polygon
-      x = s[0],  // current x position
-      y = s[1],  // current y position
-      dx = 0,    // next x direction
-      dy = 0,    // next y direction
-      pdx = NaN, // previous x direction
-      pdy = NaN, // previous y direction
-      i = 0;
-
-  do {
-    // determine marching squares index
-    i = 0;
-    if (grid(x-1, y-1)) i += 1;
-    if (grid(x,   y-1)) i += 2;
-    if (grid(x-1, y  )) i += 4;
-    if (grid(x,   y  )) i += 8;
-
-    // determine next direction
-    if (i === 6) {
-      dx = pdy === -1 ? -1 : 1;
-      dy = 0;
-    } else if (i === 9) {
-      dx = 0;
-      dy = pdx === 1 ? -1 : 1;
-    } else {
-      dx = d3_geom_contourDx[i];
-      dy = d3_geom_contourDy[i];
-    }
-
-    // update contour polygon
-    if (dx != pdx && dy != pdy) {
-      c.push([x, y]);
-      pdx = dx;
-      pdy = dy;
-    }
-
-    x += dx;
-    y += dy;
-  } while (s[0] != x || s[1] != y);
-
-  return c;
-};
-
-// lookup tables for marching directions
-var d3_geom_contourDx = [1, 0, 1, 1,-1, 0,-1, 1,0, 0,0,0,-1, 0,-1,NaN],
-    d3_geom_contourDy = [0,-1, 0, 0, 0,-1, 0, 0,1,-1,1,1, 0,-1, 0,NaN];
-
-function d3_geom_contourStart(grid) {
-  var x = 0,
-      y = 0;
-
-  // search for a starting point; begin at origin
-  // and proceed along outward-expanding diagonals
-  while (true) {
-    if (grid(x,y)) {
-      return [x,y];
-    }
-    if (x === 0) {
-      x = y + 1;
-      y = 0;
-    } else {
-      x = x - 1;
-      y = y + 1;
-    }
-  }
-}
-/**
- * Computes the 2D convex hull of a set of points using Graham's scanning
- * algorithm. The algorithm has been implemented as described in Cormen,
- * Leiserson, and Rivest's Introduction to Algorithms. The running time of
- * this algorithm is O(n log n), where n is the number of input points.
- *
- * @param vertices [[x1, y1], [x2, y2], …]
- * @returns polygon [[x1, y1], [x2, y2], …]
- */
-d3.geom.hull = function(vertices) {
-  if (vertices.length < 3) return [];
-
-  var len = vertices.length,
-      plen = len - 1,
-      points = [],
-      stack = [],
-      i, j, h = 0, x1, y1, x2, y2, u, v, a, sp;
-
-  // find the starting ref point: leftmost point with the minimum y coord
-  for (i=1; i<len; ++i) {
-    if (vertices[i][1] < vertices[h][1]) {
-      h = i;
-    } else if (vertices[i][1] == vertices[h][1]) {
-      h = (vertices[i][0] < vertices[h][0] ? i : h);
-    }
-  }
-
-  // calculate polar angles from ref point and sort
-  for (i=0; i<len; ++i) {
-    if (i === h) continue;
-    y1 = vertices[i][1] - vertices[h][1];
-    x1 = vertices[i][0] - vertices[h][0];
-    points.push({angle: Math.atan2(y1, x1), index: i});
-  }
-  points.sort(function(a, b) { return a.angle - b.angle; });
-
-  // toss out duplicate angles
-  a = points[0].angle;
-  v = points[0].index;
-  u = 0;
-  for (i=1; i<plen; ++i) {
-    j = points[i].index;
-    if (a == points[i].angle) {
-      // keep angle for point most distant from the reference
-      x1 = vertices[v][0] - vertices[h][0];
-      y1 = vertices[v][1] - vertices[h][1];
-      x2 = vertices[j][0] - vertices[h][0];
-      y2 = vertices[j][1] - vertices[h][1];
-      if ((x1*x1 + y1*y1) >= (x2*x2 + y2*y2)) {
-        points[i].index = -1;
-      } else {
-        points[u].index = -1;
-        a = points[i].angle;
-        u = i;
-        v = j;
-      }
-    } else {
-      a = points[i].angle;
-      u = i;
-      v = j;
-    }
-  }
-
-  // initialize the stack
-  stack.push(h);
-  for (i=0, j=0; i<2; ++j) {
-    if (points[j].index !== -1) {
-      stack.push(points[j].index);
-      i++;
-    }
-  }
-  sp = stack.length;
-
-  // do graham's scan
-  for (; j<plen; ++j) {
-    if (points[j].index === -1) continue; // skip tossed out points
-    while (!d3_geom_hullCCW(stack[sp-2], stack[sp-1], points[j].index, vertices)) {
-      --sp;
-    }
-    stack[sp++] = points[j].index;
-  }
-
-  // construct the hull
-  var poly = [];
-  for (i=0; i<sp; ++i) {
-    poly.push(vertices[stack[i]]);
-  }
-  return poly;
-}
-
-// are three points in counter-clockwise order?
-function d3_geom_hullCCW(i1, i2, i3, v) {
-  var t, a, b, c, d, e, f;
-  t = v[i1]; a = t[0]; b = t[1];
-  t = v[i2]; c = t[0]; d = t[1];
-  t = v[i3]; e = t[0]; f = t[1];
-  return ((f-b)*(c-a) - (d-b)*(e-a)) > 0;
-}
-// Note: requires coordinates to be counterclockwise and convex!
-d3.geom.polygon = function(coordinates) {
-
-  coordinates.area = function() {
-    var i = 0,
-        n = coordinates.length,
-        a = coordinates[n - 1][0] * coordinates[0][1],
-        b = coordinates[n - 1][1] * coordinates[0][0];
-    while (++i < n) {
-      a += coordinates[i - 1][0] * coordinates[i][1];
-      b += coordinates[i - 1][1] * coordinates[i][0];
-    }
-    return (b - a) * .5;
-  };
-
-  coordinates.centroid = function(k) {
-    var i = -1,
-        n = coordinates.length - 1,
-        x = 0,
-        y = 0,
-        a,
-        b,
-        c;
-    if (!arguments.length) k = 1 / (6 * coordinates.area());
-    while (++i < n) {
-      a = coordinates[i];
-      b = coordinates[i + 1];
-      c = a[0] * b[1] - b[0] * a[1];
-      x += (a[0] + b[0]) * c;
-      y += (a[1] + b[1]) * c;
-    }
-    return [x * k, y * k];
-  };
-
-  // The Sutherland-Hodgman clipping algorithm.
-  coordinates.clip = function(subject) {
-    var input,
-        i = -1,
-        n = coordinates.length,
-        j,
-        m,
-        a = coordinates[n - 1],
-        b,
-        c,
-        d;
-    while (++i < n) {
-      input = subject.slice();
-      subject.length = 0;
-      b = coordinates[i];
-      c = input[(m = input.length) - 1];
-      j = -1;
-      while (++j < m) {
-        d = input[j];
-        if (d3_geom_polygonInside(d, a, b)) {
-          if (!d3_geom_polygonInside(c, a, b)) {
-            subject.push(d3_geom_polygonIntersect(c, d, a, b));
-          }
-          subject.push(d);
-        } else if (d3_geom_polygonInside(c, a, b)) {
-          subject.push(d3_geom_polygonIntersect(c, d, a, b));
-        }
-        c = d;
-      }
-      a = b;
-    }
-    return subject;
-  };
-
-  return coordinates;
-};
-
-function d3_geom_polygonInside(p, a, b) {
-  return (b[0] - a[0]) * (p[1] - a[1]) < (b[1] - a[1]) * (p[0] - a[0]);
-}
-
-// Intersect two infinite lines cd and ab.
-function d3_geom_polygonIntersect(c, d, a, b) {
-  var x1 = c[0], x2 = d[0], x3 = a[0], x4 = b[0],
-      y1 = c[1], y2 = d[1], y3 = a[1], y4 = b[1],
-      x13 = x1 - x3,
-      x21 = x2 - x1,
-      x43 = x4 - x3,
-      y13 = y1 - y3,
-      y21 = y2 - y1,
-      y43 = y4 - y3,
-      ua = (x43 * y13 - y43 * x13) / (y43 * x21 - x43 * y21);
-  return [x1 + ua * x21, y1 + ua * y21];
-}
-// Adapted from Nicolas Garcia Belmonte's JIT implementation:
-// http://blog.thejit.org/2010/02/12/voronoi-tessellation/
-// http://blog.thejit.org/assets/voronoijs/voronoi.js
-// See lib/jit/LICENSE for details.
-
-/**
- * @param vertices [[x1, y1], [x2, y2], …]
- * @returns polygons [[[x1, y1], [x2, y2], …], …]
- */
-d3.geom.voronoi = function(vertices) {
-  var polygons = vertices.map(function() { return []; });
-
-  // Note: we expect the caller to clip the polygons, if needed.
-  d3_voronoi_tessellate(vertices, function(e) {
-    var s1,
-        s2,
-        x1,
-        x2,
-        y1,
-        y2;
-    if (e.a === 1 && e.b >= 0) {
-      s1 = e.ep.r;
-      s2 = e.ep.l;
-    } else {
-      s1 = e.ep.l;
-      s2 = e.ep.r;
-    }
-    if (e.a === 1) {
-      y1 = s1 ? s1.y : -1e6;
-      x1 = e.c - e.b * y1;
-      y2 = s2 ? s2.y : 1e6;
-      x2 = e.c - e.b * y2;
-    } else {
-      x1 = s1 ? s1.x : -1e6;
-      y1 = e.c - e.a * x1;
-      x2 = s2 ? s2.x : 1e6;
-      y2 = e.c - e.a * x2;
-    }
-    var v1 = [x1, y1],
-        v2 = [x2, y2];
-    polygons[e.region.l.index].push(v1, v2);
-    polygons[e.region.r.index].push(v1, v2);
-  });
-
-  // Reconnect the polygon segments into counterclockwise loops.
-  return polygons.map(function(polygon, i) {
-    var cx = vertices[i][0],
-        cy = vertices[i][1];
-    polygon.forEach(function(v) {
-      v.angle = Math.atan2(v[0] - cx, v[1] - cy);
-    });
-    return polygon.sort(function(a, b) {
-      return a.angle - b.angle;
-    }).filter(function(d, i) {
-      return !i || (d.angle - polygon[i - 1].angle > 1e-10);
-    });
-  });
-};
-
-var d3_voronoi_opposite = {"l": "r", "r": "l"};
-
-function d3_voronoi_tessellate(vertices, callback) {
-
-  var Sites = {
-    list: vertices
-      .map(function(v, i) {
-        return {
-          index: i,
-          x: v[0],
-          y: v[1]
-        };
-      })
-      .sort(function(a, b) {
-        return a.y < b.y ? -1
-          : a.y > b.y ? 1
-          : a.x < b.x ? -1
-          : a.x > b.x ? 1
-          : 0;
-      }),
-    bottomSite: null
-  };
-
-  var EdgeList = {
-    list: [],
-    leftEnd: null,
-    rightEnd: null,
-
-    init: function() {
-      EdgeList.leftEnd = EdgeList.createHalfEdge(null, "l");
-      EdgeList.rightEnd = EdgeList.createHalfEdge(null, "l");
-      EdgeList.leftEnd.r = EdgeList.rightEnd;
-      EdgeList.rightEnd.l = EdgeList.leftEnd;
-      EdgeList.list.unshift(EdgeList.leftEnd, EdgeList.rightEnd);
-    },
-
-    createHalfEdge: function(edge, side) {
-      return {
-        edge: edge,
-        side: side,
-        vertex: null,
-        "l": null,
-        "r": null
-      };
-    },
-
-    insert: function(lb, he) {
-      he.l = lb;
-      he.r = lb.r;
-      lb.r.l = he;
-      lb.r = he;
-    },
-
-    leftBound: function(p) {
-      var he = EdgeList.leftEnd;
-      do {
-        he = he.r;
-      } while (he != EdgeList.rightEnd && Geom.rightOf(he, p));
-      he = he.l;
-      return he;
-    },
-
-    del: function(he) {
-      he.l.r = he.r;
-      he.r.l = he.l;
-      he.edge = null;
-    },
-
-    right: function(he) {
-      return he.r;
-    },
-
-    left: function(he) {
-      return he.l;
-    },
-
-    leftRegion: function(he) {
-      return he.edge == null
-          ? Sites.bottomSite
-          : he.edge.region[he.side];
-    },
-
-    rightRegion: function(he) {
-      return he.edge == null
-          ? Sites.bottomSite
-          : he.edge.region[d3_voronoi_opposite[he.side]];
-    }
-  };
-
-  var Geom = {
-
-    bisect: function(s1, s2) {
-      var newEdge = {
-        region: {"l": s1, "r": s2},
-        ep: {"l": null, "r": null}
-      };
-
-      var dx = s2.x - s1.x,
-          dy = s2.y - s1.y,
-          adx = dx > 0 ? dx : -dx,
-          ady = dy > 0 ? dy : -dy;
-
-      newEdge.c = s1.x * dx + s1.y * dy
-          + (dx * dx + dy * dy) * .5;
-
-      if (adx > ady) {
-        newEdge.a = 1;
-        newEdge.b = dy / dx;
-        newEdge.c /= dx;
-      } else {
-        newEdge.b = 1;
-        newEdge.a = dx / dy;
-        newEdge.c /= dy;
-      }
-
-      return newEdge;
-    },
-
-    intersect: function(el1, el2) {
-      var e1 = el1.edge,
-          e2 = el2.edge;
-      if (!e1 || !e2 || (e1.region.r == e2.region.r)) {
-        return null;
-      }
-      var d = (e1.a * e2.b) - (e1.b * e2.a);
-      if (Math.abs(d) < 1e-10) {
-        return null;
-      }
-      var xint = (e1.c * e2.b - e2.c * e1.b) / d,
-          yint = (e2.c * e1.a - e1.c * e2.a) / d,
-          e1r = e1.region.r,
-          e2r = e2.region.r,
-          el,
-          e;
-      if ((e1r.y < e2r.y) ||
-         (e1r.y == e2r.y && e1r.x < e2r.x)) {
-        el = el1;
-        e = e1;
-      } else {
-        el = el2;
-        e = e2;
-      }
-      var rightOfSite = (xint >= e.region.r.x);
-      if ((rightOfSite && (el.side === "l")) ||
-        (!rightOfSite && (el.side === "r"))) {
-        return null;
-      }
-      return {
-        x: xint,
-        y: yint
-      };
-    },
-
-    rightOf: function(he, p) {
-      var e = he.edge,
-          topsite = e.region.r,
-          rightOfSite = (p.x > topsite.x);
-
-      if (rightOfSite && (he.side === "l")) {
-        return 1;
-      }
-      if (!rightOfSite && (he.side === "r")) {
-        return 0;
-      }
-      if (e.a === 1) {
-        var dyp = p.y - topsite.y,
-            dxp = p.x - topsite.x,
-            fast = 0,
-            above = 0;
-
-        if ((!rightOfSite && (e.b < 0)) ||
-          (rightOfSite && (e.b >= 0))) {
-          above = fast = (dyp >= e.b * dxp);
-        } else {
-          above = ((p.x + p.y * e.b) > e.c);
-          if (e.b < 0) {
-            above = !above;
-          }
-          if (!above) {
-            fast = 1;
-          }
-        }
-        if (!fast) {
-          var dxs = topsite.x - e.region.l.x;
-          above = (e.b * (dxp * dxp - dyp * dyp)) <
-            (dxs * dyp * (1 + 2 * dxp / dxs + e.b * e.b));
-
-          if (e.b < 0) {
-            above = !above;
-          }
-        }
-      } else /* e.b == 1 */ {
-        var yl = e.c - e.a * p.x,
-            t1 = p.y - yl,
-            t2 = p.x - topsite.x,
-            t3 = yl - topsite.y;
-
-        above = (t1 * t1) > (t2 * t2 + t3 * t3);
-      }
-      return he.side === "l" ? above : !above;
-    },
-
-    endPoint: function(edge, side, site) {
-      edge.ep[side] = site;
-      if (!edge.ep[d3_voronoi_opposite[side]]) return;
-      callback(edge);
-    },
-
-    distance: function(s, t) {
-      var dx = s.x - t.x,
-          dy = s.y - t.y;
-      return Math.sqrt(dx * dx + dy * dy);
-    }
-  };
-
-  var EventQueue = {
-    list: [],
-
-    insert: function(he, site, offset) {
-      he.vertex = site;
-      he.ystar = site.y + offset;
-      for (var i=0, list=EventQueue.list, l=list.length; i<l; i++) {
-        var next = list[i];
-        if (he.ystar > next.ystar ||
-          (he.ystar == next.ystar &&
-          site.x > next.vertex.x)) {
-          continue;
-        } else {
-          break;
-        }
-      }
-      list.splice(i, 0, he);
-    },
-
-    del: function(he) {
-      for (var i=0, ls=EventQueue.list, l=ls.length; i<l && (ls[i] != he); ++i) {}
-      ls.splice(i, 1);
-    },
-
-    empty: function() { return EventQueue.list.length === 0; },
-
-    nextEvent: function(he) {
-      for (var i=0, ls=EventQueue.list, l=ls.length; i<l; ++i) {
-        if (ls[i] == he) return ls[i+1];
-      }
-      return null;
-    },
-
-    min: function() {
-      var elem = EventQueue.list[0];
-      return {
-        x: elem.vertex.x,
-        y: elem.ystar
-      };
-    },
-
-    extractMin: function() {
-      return EventQueue.list.shift();
-    }
-  };
-
-  EdgeList.init();
-  Sites.bottomSite = Sites.list.shift();
-
-  var newSite = Sites.list.shift(), newIntStar;
-  var lbnd, rbnd, llbnd, rrbnd, bisector;
-  var bot, top, temp, p, v;
-  var e, pm;
-
-  while (true) {
-    if (!EventQueue.empty()) {
-      newIntStar = EventQueue.min();
-    }
-    if (newSite && (EventQueue.empty()
-      || newSite.y < newIntStar.y
-      || (newSite.y == newIntStar.y
-      && newSite.x < newIntStar.x))) { //new site is smallest
-      lbnd = EdgeList.leftBound(newSite);
-      rbnd = EdgeList.right(lbnd);
-      bot = EdgeList.rightRegion(lbnd);
-      e = Geom.bisect(bot, newSite);
-      bisector = EdgeList.createHalfEdge(e, "l");
-      EdgeList.insert(lbnd, bisector);
-      p = Geom.intersect(lbnd, bisector);
-      if (p) {
-        EventQueue.del(lbnd);
-        EventQueue.insert(lbnd, p, Geom.distance(p, newSite));
-      }
-      lbnd = bisector;
-      bisector = EdgeList.createHalfEdge(e, "r");
-      EdgeList.insert(lbnd, bisector);
-      p = Geom.intersect(bisector, rbnd);
-      if (p) {
-        EventQueue.insert(bisector, p, Geom.distance(p, newSite));
-      }
-      newSite = Sites.list.shift();
-    } else if (!EventQueue.empty()) { //intersection is smallest
-      lbnd = EventQueue.extractMin();
-      llbnd = EdgeList.left(lbnd);
-      rbnd = EdgeList.right(lbnd);
-      rrbnd = EdgeList.right(rbnd);
-      bot = EdgeList.leftRegion(lbnd);
-      top = EdgeList.rightRegion(rbnd);
-      v = lbnd.vertex;
-      Geom.endPoint(lbnd.edge, lbnd.side, v);
-      Geom.endPoint(rbnd.edge, rbnd.side, v);
-      EdgeList.del(lbnd);
-      EventQueue.del(rbnd);
-      EdgeList.del(rbnd);
-      pm = "l";
-      if (bot.y > top.y) {
-        temp = bot;
-        bot = top;
-        top = temp;
-        pm = "r";
-      }
-      e = Geom.bisect(bot, top);
-      bisector = EdgeList.createHalfEdge(e, pm);
-      EdgeList.insert(llbnd, bisector);
-      Geom.endPoint(e, d3_voronoi_opposite[pm], v);
-      p = Geom.intersect(llbnd, bisector);
-      if (p) {
-        EventQueue.del(llbnd);
-        EventQueue.insert(llbnd, p, Geom.distance(p, bot));
-      }
-      p = Geom.intersect(bisector, rrbnd);
-      if (p) {
-        EventQueue.insert(bisector, p, Geom.distance(p, bot));
-      }
-    } else {
-      break;
-    }
-  }//end while
-
-  for (lbnd = EdgeList.right(EdgeList.leftEnd);
-      lbnd != EdgeList.rightEnd;
-      lbnd = EdgeList.right(lbnd)) {
-    callback(lbnd.edge);
-  }
-}
-/**
-* @param vertices [[x1, y1], [x2, y2], …]
-* @returns triangles [[[x1, y1], [x2, y2], [x3, y3]], …]
- */
-d3.geom.delaunay = function(vertices) {
-  var edges = vertices.map(function() { return []; }),
-      triangles = [];
-
-  // Use the Voronoi tessellation to determine Delaunay edges.
-  d3_voronoi_tessellate(vertices, function(e) {
-    edges[e.region.l.index].push(vertices[e.region.r.index]);
-  });
-
-  // Reconnect the edges into counterclockwise triangles.
-  edges.forEach(function(edge, i) {
-    var v = vertices[i],
-        cx = v[0],
-        cy = v[1];
-    edge.forEach(function(v) {
-      v.angle = Math.atan2(v[0] - cx, v[1] - cy);
-    });
-    edge.sort(function(a, b) {
-      return a.angle - b.angle;
-    });
-    for (var j = 0, m = edge.length - 1; j < m; j++) {
-      triangles.push([v, edge[j], edge[j + 1]]);
-    }
-  });
-
-  return triangles;
-};
-// Constructs a new quadtree for the specified array of points. A quadtree is a
-// two-dimensional recursive spatial subdivision. This implementation uses
-// square partitions, dividing each square into four equally-sized squares. Each
-// point exists in a unique node; if multiple points are in the same position,
-// some points may be stored on internal nodes rather than leaf nodes. Quadtrees
-// can be used to accelerate various spatial operations, such as the Barnes-Hut
-// approximation for computing n-body forces, or collision detection.
-d3.geom.quadtree = function(points, x1, y1, x2, y2) {
-  var p,
-      i = -1,
-      n = points.length;
-
-  // Type conversion for deprecated API.
-  if (n && isNaN(points[0].x)) points = points.map(d3_geom_quadtreePoint);
-
-  // Allow bounds to be specified explicitly.
-  if (arguments.length < 5) {
-    if (arguments.length === 3) {
-      y2 = x2 = y1;
-      y1 = x1;
-    } else {
-      x1 = y1 = Infinity;
-      x2 = y2 = -Infinity;
-
-      // Compute bounds.
-      while (++i < n) {
-        p = points[i];
-        if (p.x < x1) x1 = p.x;
-        if (p.y < y1) y1 = p.y;
-        if (p.x > x2) x2 = p.x;
-        if (p.y > y2) y2 = p.y;
-      }
-
-      // Squarify the bounds.
-      var dx = x2 - x1,
-          dy = y2 - y1;
-      if (dx > dy) y2 = y1 + dx;
-      else x2 = x1 + dy;
-    }
-  }
-
-  // Recursively inserts the specified point p at the node n or one of its
-  // descendants. The bounds are defined by [x1, x2] and [y1, y2].
-  function insert(n, p, x1, y1, x2, y2) {
-    if (isNaN(p.x) || isNaN(p.y)) return; // ignore invalid points
-    if (n.leaf) {
-      var v = n.point;
-      if (v) {
-        // If the point at this leaf node is at the same position as the new
-        // point we are adding, we leave the point associated with the
-        // internal node while adding the new point to a child node. This
-        // avoids infinite recursion.
-        if ((Math.abs(v.x - p.x) + Math.abs(v.y - p.y)) < .01) {
-          insertChild(n, p, x1, y1, x2, y2);
-        } else {
-          n.point = null;
-          insertChild(n, v, x1, y1, x2, y2);
-          insertChild(n, p, x1, y1, x2, y2);
-        }
-      } else {
-        n.point = p;
-      }
-    } else {
-      insertChild(n, p, x1, y1, x2, y2);
-    }
-  }
-
-  // Recursively inserts the specified point p into a descendant of node n. The
-  // bounds are defined by [x1, x2] and [y1, y2].
-  function insertChild(n, p, x1, y1, x2, y2) {
-    // Compute the split point, and the quadrant in which to insert p.
-    var sx = (x1 + x2) * .5,
-        sy = (y1 + y2) * .5,
-        right = p.x >= sx,
-        bottom = p.y >= sy,
-        i = (bottom << 1) + right;
-
-    // Recursively insert into the child node.
-    n.leaf = false;
-    n = n.nodes[i] || (n.nodes[i] = d3_geom_quadtreeNode());
-
-    // Update the bounds as we recurse.
-    if (right) x1 = sx; else x2 = sx;
-    if (bottom) y1 = sy; else y2 = sy;
-    insert(n, p, x1, y1, x2, y2);
-  }
-
-  // Create the root node.
-  var root = d3_geom_quadtreeNode();
-
-  root.add = function(p) {
-    insert(root, p, x1, y1, x2, y2);
-  };
-
-  root.visit = function(f) {
-    d3_geom_quadtreeVisit(f, root, x1, y1, x2, y2);
-  };
-
-  // Insert all points.
-  points.forEach(root.add);
-  return root;
-};
-
-function d3_geom_quadtreeNode() {
-  return {
-    leaf: true,
-    nodes: [],
-    point: null
-  };
-}
-
-function d3_geom_quadtreeVisit(f, node, x1, y1, x2, y2) {
-  if (!f(node, x1, y1, x2, y2)) {
-    var sx = (x1 + x2) * .5,
-        sy = (y1 + y2) * .5,
-        children = node.nodes;
-    if (children[0]) d3_geom_quadtreeVisit(f, children[0], x1, y1, sx, sy);
-    if (children[1]) d3_geom_quadtreeVisit(f, children[1], sx, y1, x2, sy);
-    if (children[2]) d3_geom_quadtreeVisit(f, children[2], x1, sy, sx, y2);
-    if (children[3]) d3_geom_quadtreeVisit(f, children[3], sx, sy, x2, y2);
-  }
-}
-
-function d3_geom_quadtreePoint(p) {
-  return {
-    x: p[0],
-    y: p[1]
-  };
-}
-})();
diff --git a/vendor/d3/d3.geom.min.js b/vendor/d3/d3.geom.min.js
deleted file mode 100644
index bbe2a7e..0000000
--- a/vendor/d3/d3.geom.min.js
+++ /dev/null
@@ -1 +0,0 @@
-(function(){function k(a){return{x:a[0],y:a[1]}}function j(a,b,c,d,e,f){if(!a(b,c,d,e,f)){var g=(c+e)*.5,h=(d+f)*.5,i=b.nodes;i[0]&&j(a,i[0],c,d,g,h),i[1]&&j(a,i[1],g,d,e,h),i[2]&&j(a,i[2],c,h,g,f),i[3]&&j(a,i[3],g,h,e,f)}}function i(){return{leaf:!0,nodes:[],point:null}}function h(a,b){var c={list:a.map(function(a,b){return{index:b,x:a[0],y:a[1]}}).sort(function(a,b){return a.y<b.y?-1:a.y>b.y?1:a.x<b.x?-1:a.x>b.x?1:0}),bottomSite:null},d={list:[],leftEnd:null,rightEnd:null,init:function(){d.leftEnd=d.createHalfEdge(null,"l"),d.rightEnd=d.createHalfEdge(null,"l"),d.leftEnd.r=d.rightEnd,d.rightEnd.l=d.leftEnd,d.list.unshift(d.leftEnd,d.rightEnd)},createHalfEdge:function(a,b){return{edge:a,side:b,vertex:null,l:null,r:null}},insert:function(a,b){b.l=a,b.r=a.r,a.r.l=b,a.r=b},leftBound:function(a){var b=d.leftEnd;do b=b.r;while(b!=d.rightEnd&&e.rightOf(b,a));b=b.l;return b},del:function(a){a.l.r=a.r,a.r.l=a.l,a.edge=null},right:function(a){return a.r},left:function(a){return a.l},leftRegion:function(a){return a.edge==null?c.bottomSite:a.edge.region[a.side]},rightRegion:function(a){return a.edge==null?c.bottomSite:a.edge.region[g[a.side]]}},e={bisect:function(a,b){var c={region:{l:a,r:b},ep:{l:null,r:null}},d=b.x-a.x,e=b.y-a.y,f=d>0?d:-d,g=e>0?e:-e;c.c=a.x*d+a.y*e+(d*d+e*e)*.5,f>g?(c.a=1,c.b=e/d,c.c/=d):(c.b=1,c.a=d/e,c.c/=e);return c},intersect:function(a,b){var c=a.edge,d=b.edge;if(!c||!d||c.region.r==d.region.r)return null;var e=c.a*d.b-c.b*d.a;if(Math.abs(e)<1e-10)return null;var f=(c.c*d.b-d.c*c.b)/e,g=(d.c*c.a-c.c*d.a)/e,h=c.region.r,i=d.region.r,j,k;h.y<i.y||h.y==i.y&&h.x<i.x?(j=a,k=c):(j=b,k=d);var l=f>=k.region.r.x;return l&&j.side==="l"||!l&&j.side==="r"?null:{x:f,y:g}},rightOf:function(a,b){var c=a.edge,d=c.region.r,e=b.x>d.x;if(e&&a.side==="l")return 1;if(!e&&a.side==="r")return 0;if(c.a===1){var f=b.y-d.y,g=b.x-d.x,h=0,i=0;!e&&c.b<0||e&&c.b>=0?i=h=f>=c.b*g:(i=b.x+b.y*c.b>c.c,c.b<0&&(i=!i),i||(h=1));if(!h){var 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l=d-b,m=e-c;l>m?e=c+l:d=b+m}var p=i();p.add=function(a){n(p,a,b,c,d,e)},p.visit=function(a){j(a,p,b,c,d,e)},a.forEach(p.add);return p}})()
\ No newline at end of file
diff --git a/vendor/d3/d3.js b/vendor/d3/d3.js
deleted file mode 100644
index 02a3a50..0000000
--- a/vendor/d3/d3.js
+++ /dev/null
@@ -1,4044 +0,0 @@
-(function(){if (!Date.now) Date.now = function() {
-  return +new Date;
-};
-try {
-  document.createElement("div").style.setProperty("opacity", 0, "");
-} catch (error) {
-  var d3_style_prototype = CSSStyleDeclaration.prototype,
-      d3_style_setProperty = d3_style_prototype.setProperty;
-  d3_style_prototype.setProperty = function(name, value, priority) {
-    d3_style_setProperty.call(this, name, value + "", priority);
-  };
-}
-d3 = {version: "2.3.2"}; // semver
-var d3_array = d3_arraySlice; // conversion for NodeLists
-
-function d3_arrayCopy(pseudoarray) {
-  var i = -1, n = pseudoarray.length, array = [];
-  while (++i < n) array.push(pseudoarray[i]);
-  return array;
-}
-
-function d3_arraySlice(pseudoarray) {
-  return Array.prototype.slice.call(pseudoarray);
-}
-
-try {
-  d3_array(document.documentElement.childNodes)[0].nodeType;
-} catch(e) {
-  d3_array = d3_arrayCopy;
-}
-
-var d3_arraySubclass = [].__proto__?
-
-// Until ECMAScript supports array subclassing, prototype injection works well.
-function(array, prototype) {
-  array.__proto__ = prototype;
-}:
-
-// And if your browser doesn't support __proto__, we'll use direct extension.
-function(array, prototype) {
-  for (var property in prototype) array[property] = prototype[property];
-};
-function d3_this() {
-  return this;
-}
-d3.functor = function(v) {
-  return typeof v === "function" ? v : function() { return v; };
-};
-// A getter-setter method that preserves the appropriate `this` context.
-d3.rebind = function(object, method) {
-  return function() {
-    var x = method.apply(object, arguments);
-    return arguments.length ? object : x;
-  };
-};
-d3.ascending = function(a, b) {
-  return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
-};
-d3.descending = function(a, b) {
-  return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;
-};
-d3.min = function(array, f) {
-  var i = -1,
-      n = array.length,
-      a,
-      b;
-  if (arguments.length === 1) {
-    while (++i < n && ((a = array[i]) == null || a != a)) a = undefined;
-    while (++i < n) if ((b = array[i]) != null && a > b) a = b;
-  } else {
-    while (++i < n && ((a = f.call(array, array[i], i)) == null || a != a)) a = undefined;
-    while (++i < n) if ((b = f.call(array, array[i], i)) != null && a > b) a = b;
-  }
-  return a;
-};
-d3.max = function(array, f) {
-  var i = -1,
-      n = array.length,
-      a,
-      b;
-  if (arguments.length === 1) {
-    while (++i < n && ((a = array[i]) == null || a != a)) a = undefined;
-    while (++i < n) if ((b = array[i]) != null && b > a) a = b;
-  } else {
-    while (++i < n && ((a = f.call(array, array[i], i)) == null || a != a)) a = undefined;
-    while (++i < n) if ((b = f.call(array, array[i], i)) != null && b > a) a = b;
-  }
-  return a;
-};
-d3.sum = function(array, f) {
-  var s = 0,
-      n = array.length,
-      a,
-      i = -1;
-
-  if (arguments.length === 1) {
-    while (++i < n) if (!isNaN(a = +array[i])) s += a;
-  } else {
-    while (++i < n) if (!isNaN(a = +f.call(array, array[i], i))) s += a;
-  }
-
-  return s;
-};
-// R-7 per <http://en.wikipedia.org/wiki/Quantile>
-d3.quantile = function(values, p) {
-  var H = (values.length - 1) * p + 1,
-      h = Math.floor(H),
-      v = values[h - 1],
-      e = H - h;
-  return e ? v + e * (values[h] - v) : v;
-};
-d3.zip = function() {
-  if (!(n = arguments.length)) return [];
-  for (var i = -1, m = d3.min(arguments, d3_zipLength), zips = new Array(m); ++i < m;) {
-    for (var j = -1, n, zip = zips[i] = new Array(n); ++j < n;) {
-      zip[j] = arguments[j][i];
-    }
-  }
-  return zips;
-};
-
-function d3_zipLength(d) {
-  return d.length;
-}
-// Locate the insertion point for x in a to maintain sorted order. The
-// arguments lo and hi may be used to specify a subset of the array which should
-// be considered; by default the entire array is used. If x is already present
-// in a, the insertion point will be before (to the left of) any existing
-// entries. The return value is suitable for use as the first argument to
-// `array.splice` assuming that a is already sorted.
-//
-// The returned insertion point i partitions the array a into two halves so that
-// all v < x for v in a[lo:i] for the left side and all v >= x for v in a[i:hi]
-// for the right side.
-d3.bisectLeft = function(a, x, lo, hi) {
-  if (arguments.length < 3) lo = 0;
-  if (arguments.length < 4) hi = a.length;
-  while (lo < hi) {
-    var mid = (lo + hi) >> 1;
-    if (a[mid] < x) lo = mid + 1;
-    else hi = mid;
-  }
-  return lo;
-};
-
-// Similar to bisectLeft, but returns an insertion point which comes after (to
-// the right of) any existing entries of x in a.
-//
-// The returned insertion point i partitions the array into two halves so that
-// all v <= x for v in a[lo:i] for the left side and all v > x for v in a[i:hi]
-// for the right side.
-d3.bisect =
-d3.bisectRight = function(a, x, lo, hi) {
-  if (arguments.length < 3) lo = 0;
-  if (arguments.length < 4) hi = a.length;
-  while (lo < hi) {
-    var mid = (lo + hi) >> 1;
-    if (x < a[mid]) hi = mid;
-    else lo = mid + 1;
-  }
-  return lo;
-};
-d3.first = function(array, f) {
-  var i = 0,
-      n = array.length,
-      a = array[0],
-      b;
-  if (arguments.length === 1) f = d3.ascending;
-  while (++i < n) {
-    if (f.call(array, a, b = array[i]) > 0) {
-      a = b;
-    }
-  }
-  return a;
-};
-d3.last = function(array, f) {
-  var i = 0,
-      n = array.length,
-      a = array[0],
-      b;
-  if (arguments.length === 1) f = d3.ascending;
-  while (++i < n) {
-    if (f.call(array, a, b = array[i]) <= 0) {
-      a = b;
-    }
-  }
-  return a;
-};
-d3.nest = function() {
-  var nest = {},
-      keys = [],
-      sortKeys = [],
-      sortValues,
-      rollup;
-
-  function map(array, depth) {
-    if (depth >= keys.length) return rollup
-        ? rollup.call(nest, array) : (sortValues
-        ? array.sort(sortValues)
-        : array);
-
-    var i = -1,
-        n = array.length,
-        key = keys[depth++],
-        keyValue,
-        object,
-        o = {};
-
-    while (++i < n) {
-      if ((keyValue = key(object = array[i])) in o) {
-        o[keyValue].push(object);
-      } else {
-        o[keyValue] = [object];
-      }
-    }
-
-    for (keyValue in o) {
-      o[keyValue] = map(o[keyValue], depth);
-    }
-
-    return o;
-  }
-
-  function entries(map, depth) {
-    if (depth >= keys.length) return map;
-
-    var a = [],
-        sortKey = sortKeys[depth++],
-        key;
-
-    for (key in map) {
-      a.push({key: key, values: entries(map[key], depth)});
-    }
-
-    if (sortKey) a.sort(function(a, b) {
-      return sortKey(a.key, b.key);
-    });
-
-    return a;
-  }
-
-  nest.map = function(array) {
-    return map(array, 0);
-  };
-
-  nest.entries = function(array) {
-    return entries(map(array, 0), 0);
-  };
-
-  nest.key = function(d) {
-    keys.push(d);
-    return nest;
-  };
-
-  // Specifies the order for the most-recently specified key.
-  // Note: only applies to entries. Map keys are unordered!
-  nest.sortKeys = function(order) {
-    sortKeys[keys.length - 1] = order;
-    return nest;
-  };
-
-  // Specifies the order for leaf values.
-  // Applies to both maps and entries array.
-  nest.sortValues = function(order) {
-    sortValues = order;
-    return nest;
-  };
-
-  nest.rollup = function(f) {
-    rollup = f;
-    return nest;
-  };
-
-  return nest;
-};
-d3.keys = function(map) {
-  var keys = [];
-  for (var key in map) keys.push(key);
-  return keys;
-};
-d3.values = function(map) {
-  var values = [];
-  for (var key in map) values.push(map[key]);
-  return values;
-};
-d3.entries = function(map) {
-  var entries = [];
-  for (var key in map) entries.push({key: key, value: map[key]});
-  return entries;
-};
-d3.permute = function(array, indexes) {
-  var permutes = [],
-      i = -1,
-      n = indexes.length;
-  while (++i < n) permutes[i] = array[indexes[i]];
-  return permutes;
-};
-d3.merge = function(arrays) {
-  return Array.prototype.concat.apply([], arrays);
-};
-d3.split = function(array, f) {
-  var arrays = [],
-      values = [],
-      value,
-      i = -1,
-      n = array.length;
-  if (arguments.length < 2) f = d3_splitter;
-  while (++i < n) {
-    if (f.call(values, value = array[i], i)) {
-      values = [];
-    } else {
-      if (!values.length) arrays.push(values);
-      values.push(value);
-    }
-  }
-  return arrays;
-};
-
-function d3_splitter(d) {
-  return d == null;
-}
-function d3_collapse(s) {
-  return s.replace(/(^\s+)|(\s+$)/g, "").replace(/\s+/g, " ");
-}
-/**
- * @param {number} start
- * @param {number=} stop
- * @param {number=} step
- */
-d3.range = function(start, stop, step) {
-  if (arguments.length < 3) {
-    step = 1;
-    if (arguments.length < 2) {
-      stop = start;
-      start = 0;
-    }
-  }
-  if ((stop - start) / step == Infinity) throw new Error("infinite range");
-  var range = [],
-       i = -1,
-       j;
-  if (step < 0) while ((j = start + step * ++i) > stop) range.push(j);
-  else while ((j = start + step * ++i) < stop) range.push(j);
-  return range;
-};
-d3.requote = function(s) {
-  return s.replace(d3_requote_re, "\\$&");
-};
-
-var d3_requote_re = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g;
-d3.round = function(x, n) {
-  return n
-      ? Math.round(x * Math.pow(10, n)) * Math.pow(10, -n)
-      : Math.round(x);
-};
-d3.xhr = function(url, mime, callback) {
-  var req = new XMLHttpRequest;
-  if (arguments.length < 3) callback = mime;
-  else if (mime && req.overrideMimeType) req.overrideMimeType(mime);
-  req.open("GET", url, true);
-  req.onreadystatechange = function() {
-    if (req.readyState === 4) callback(req.status < 300 ? req : null);
-  };
-  req.send(null);
-};
-d3.text = function(url, mime, callback) {
-  function ready(req) {
-    callback(req && req.responseText);
-  }
-  if (arguments.length < 3) {
-    callback = mime;
-    mime = null;
-  }
-  d3.xhr(url, mime, ready);
-};
-d3.json = function(url, callback) {
-  d3.text(url, "application/json", function(text) {
-    callback(text ? JSON.parse(text) : null);
-  });
-};
-d3.html = function(url, callback) {
-  d3.text(url, "text/html", function(text) {
-    if (text != null) { // Treat empty string as valid HTML.
-      var range = document.createRange();
-      range.selectNode(document.body);
-      text = range.createContextualFragment(text);
-    }
-    callback(text);
-  });
-};
-d3.xml = function(url, mime, callback) {
-  function ready(req) {
-    callback(req && req.responseXML);
-  }
-  if (arguments.length < 3) {
-    callback = mime;
-    mime = null;
-  }
-  d3.xhr(url, mime, ready);
-};
-d3.ns = {
-
-  prefix: {
-    svg: "http://www.w3.org/2000/svg",
-    xhtml: "http://www.w3.org/1999/xhtml",
-    xlink: "http://www.w3.org/1999/xlink",
-    xml: "http://www.w3.org/XML/1998/namespace",
-    xmlns: "http://www.w3.org/2000/xmlns/"
-  },
-
-  qualify: function(name) {
-    var i = name.indexOf(":");
-    return i < 0 ? name : {
-      space: d3.ns.prefix[name.substring(0, i)],
-      local: name.substring(i + 1)
-    };
-  }
-
-};
-/** @param {...string} types */
-d3.dispatch = function(types) {
-  var dispatch = {},
-      type;
-  for (var i = 0, n = arguments.length; i < n; i++) {
-    type = arguments[i];
-    dispatch[type] = d3_dispatch(type);
-  }
-  return dispatch;
-};
-
-function d3_dispatch(type) {
-  var dispatch = {},
-      listeners = [];
-
-  dispatch.add = function(listener) {
-    for (var i = 0; i < listeners.length; i++) {
-      if (listeners[i].listener == listener) return dispatch; // already registered
-    }
-    listeners.push({listener: listener, on: true});
-    return dispatch;
-  };
-
-  dispatch.remove = function(listener) {
-    for (var i = 0; i < listeners.length; i++) {
-      var l = listeners[i];
-      if (l.listener == listener) {
-        l.on = false;
-        listeners = listeners.slice(0, i).concat(listeners.slice(i + 1));
-        break;
-      }
-    }
-    return dispatch;
-  };
-
-  dispatch.dispatch = function() {
-    var ls = listeners; // defensive reference
-    for (var i = 0, n = ls.length; i < n; i++) {
-      var l = ls[i];
-      if (l.on) l.listener.apply(this, arguments);
-    }
-  };
-
-  return dispatch;
-};
-// TODO align
-d3.format = function(specifier) {
-  var match = d3_format_re.exec(specifier),
-      fill = match[1] || " ",
-      sign = match[3] || "",
-      zfill = match[5],
-      width = +match[6],
-      comma = match[7],
-      precision = match[8],
-      type = match[9],
-      percentage = false,
-      integer = false;
-
-  if (precision) precision = precision.substring(1);
-
-  if (zfill) {
-    fill = "0"; // TODO align = "=";
-    if (comma) width -= Math.floor((width - 1) / 4);
-  }
-
-  switch (type) {
-    case "n": comma = true; type = "g"; break;
-    case "%": percentage = true; type = "f"; break;
-    case "p": percentage = true; type = "r"; break;
-    case "d": integer = true; precision = "0"; break;
-  }
-
-  type = d3_format_types[type] || d3_format_typeDefault;
-
-  return function(value) {
-    var number = percentage ? value * 100 : +value,
-        negative = (number < 0) && (number = -number) ? "\u2212" : sign;
-
-    // Return the empty string for floats formatted as ints.
-    if (integer && (number % 1)) return "";
-
-    // Convert the input value to the desired precision.
-    value = type(number, precision);
-
-    // If the fill character is 0, the sign and group is applied after the fill.
-    if (zfill) {
-      var length = value.length + negative.length;
-      if (length < width) value = new Array(width - length + 1).join(fill) + value;
-      if (comma) value = d3_format_group(value);
-      value = negative + value;
-    }
-
-    // Otherwise (e.g., space-filling), the sign and group is applied before.
-    else {
-      if (comma) value = d3_format_group(value);
-      value = negative + value;
-      var length = value.length;
-      if (length < width) value = new Array(width - length + 1).join(fill) + value;
-    }
-    if (percentage) value += "%";
-
-    return value;
-  };
-};
-
-// [[fill]align][sign][#][0][width][,][.precision][type]
-var d3_format_re = /(?:([^{])?([<>=^]))?([+\- ])?(#)?(0)?([0-9]+)?(,)?(\.[0-9]+)?([a-zA-Z%])?/;
-
-var d3_format_types = {
-  g: function(x, p) { return x.toPrecision(p); },
-  e: function(x, p) { return x.toExponential(p); },
-  f: function(x, p) { return x.toFixed(p); },
-  r: function(x, p) {
-    var n = x ? 1 + Math.floor(1e-15 + Math.log(x) / Math.LN10) : 1;
-    return d3.round(x, p - n).toFixed(Math.max(0, Math.min(20, p - n)));
-  }
-};
-
-function d3_format_typeDefault(x) {
-  return x + "";
-}
-
-// Apply comma grouping for thousands.
-function d3_format_group(value) {
-  var i = value.lastIndexOf("."),
-      f = i >= 0 ? value.substring(i) : (i = value.length, ""),
-      t = [];
-  while (i > 0) t.push(value.substring(i -= 3, i + 3));
-  return t.reverse().join(",") + f;
-}
-/*
- * TERMS OF USE - EASING EQUATIONS
- *
- * Open source under the BSD License.
- *
- * Copyright 2001 Robert Penner
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * - Redistributions of source code must retain the above copyright notice, this
- *   list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright notice,
- *   this list of conditions and the following disclaimer in the documentation
- *   and/or other materials provided with the distribution.
- *
- * - Neither the name of the author nor the names of contributors may be used to
- *   endorse or promote products derived from this software without specific
- *   prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-var d3_ease_quad = d3_ease_poly(2),
-    d3_ease_cubic = d3_ease_poly(3);
-
-var d3_ease = {
-  linear: function() { return d3_ease_linear; },
-  poly: d3_ease_poly,
-  quad: function() { return d3_ease_quad; },
-  cubic: function() { return d3_ease_cubic; },
-  sin: function() { return d3_ease_sin; },
-  exp: function() { return d3_ease_exp; },
-  circle: function() { return d3_ease_circle; },
-  elastic: d3_ease_elastic,
-  back: d3_ease_back,
-  bounce: function() { return d3_ease_bounce; }
-};
-
-var d3_ease_mode = {
-  "in": function(f) { return f; },
-  "out": d3_ease_reverse,
-  "in-out": d3_ease_reflect,
-  "out-in": function(f) { return d3_ease_reflect(d3_ease_reverse(f)); }
-};
-
-d3.ease = function(name) {
-  var i = name.indexOf("-"),
-      t = i >= 0 ? name.substring(0, i) : name,
-      m = i >= 0 ? name.substring(i + 1) : "in";
-  return d3_ease_clamp(d3_ease_mode[m](d3_ease[t].apply(null, Array.prototype.slice.call(arguments, 1))));
-};
-
-function d3_ease_clamp(f) {
-  return function(t) {
-    return t <= 0 ? 0 : t >= 1 ? 1 : f(t);
-  };
-}
-
-function d3_ease_reverse(f) {
-  return function(t) {
-    return 1 - f(1 - t);
-  };
-}
-
-function d3_ease_reflect(f) {
-  return function(t) {
-    return .5 * (t < .5 ? f(2 * t) : (2 - f(2 - 2 * t)));
-  };
-}
-
-function d3_ease_linear(t) {
-  return t;
-}
-
-function d3_ease_poly(e) {
-  return function(t) {
-    return Math.pow(t, e);
-  }
-}
-
-function d3_ease_sin(t) {
-  return 1 - Math.cos(t * Math.PI / 2);
-}
-
-function d3_ease_exp(t) {
-  return Math.pow(2, 10 * (t - 1));
-}
-
-function d3_ease_circle(t) {
-  return 1 - Math.sqrt(1 - t * t);
-}
-
-function d3_ease_elastic(a, p) {
-  var s;
-  if (arguments.length < 2) p = 0.45;
-  if (arguments.length < 1) { a = 1; s = p / 4; }
-  else s = p / (2 * Math.PI) * Math.asin(1 / a);
-  return function(t) {
-    return 1 + a * Math.pow(2, 10 * -t) * Math.sin((t - s) * 2 * Math.PI / p);
-  };
-}
-
-function d3_ease_back(s) {
-  if (!s) s = 1.70158;
-  return function(t) {
-    return t * t * ((s + 1) * t - s);
-  };
-}
-
-function d3_ease_bounce(t) {
-  return t < 1 / 2.75 ? 7.5625 * t * t
-      : t < 2 / 2.75 ? 7.5625 * (t -= 1.5 / 2.75) * t + .75
-      : t < 2.5 / 2.75 ? 7.5625 * (t -= 2.25 / 2.75) * t + .9375
-      : 7.5625 * (t -= 2.625 / 2.75) * t + .984375;
-}
-d3.event = null;
-d3.interpolate = function(a, b) {
-  var i = d3.interpolators.length, f;
-  while (--i >= 0 && !(f = d3.interpolators[i](a, b)));
-  return f;
-};
-
-d3.interpolateNumber = function(a, b) {
-  b -= a;
-  return function(t) { return a + b * t; };
-};
-
-d3.interpolateRound = function(a, b) {
-  b -= a;
-  return function(t) { return Math.round(a + b * t); };
-};
-
-d3.interpolateString = function(a, b) {
-  var m, // current match
-      i, // current index
-      j, // current index (for coallescing)
-      s0 = 0, // start index of current string prefix
-      s1 = 0, // end index of current string prefix
-      s = [], // string constants and placeholders
-      q = [], // number interpolators
-      n, // q.length
-      o;
-
-  // Reset our regular expression!
-  d3_interpolate_number.lastIndex = 0;
-
-  // Find all numbers in b.
-  for (i = 0; m = d3_interpolate_number.exec(b); ++i) {
-    if (m.index) s.push(b.substring(s0, s1 = m.index));
-    q.push({i: s.length, x: m[0]});
-    s.push(null);
-    s0 = d3_interpolate_number.lastIndex;
-  }
-  if (s0 < b.length) s.push(b.substring(s0));
-
-  // Find all numbers in a.
-  for (i = 0, n = q.length; (m = d3_interpolate_number.exec(a)) && i < n; ++i) {
-    o = q[i];
-    if (o.x == m[0]) { // The numbers match, so coallesce.
-      if (o.i) {
-        if (s[o.i + 1] == null) { // This match is followed by another number.
-          s[o.i - 1] += o.x;
-          s.splice(o.i, 1);
-          for (j = i + 1; j < n; ++j) q[j].i--;
-        } else { // This match is followed by a string, so coallesce twice.
-          s[o.i - 1] += o.x + s[o.i + 1];
-          s.splice(o.i, 2);
-          for (j = i + 1; j < n; ++j) q[j].i -= 2;
-        }
-      } else {
-          if (s[o.i + 1] == null) { // This match is followed by another number.
-          s[o.i] = o.x;
-        } else { // This match is followed by a string, so coallesce twice.
-          s[o.i] = o.x + s[o.i + 1];
-          s.splice(o.i + 1, 1);
-          for (j = i + 1; j < n; ++j) q[j].i--;
-        }
-      }
-      q.splice(i, 1);
-      n--;
-      i--;
-    } else {
-      o.x = d3.interpolateNumber(parseFloat(m[0]), parseFloat(o.x));
-    }
-  }
-
-  // Remove any numbers in b not found in a.
-  while (i < n) {
-    o = q.pop();
-    if (s[o.i + 1] == null) { // This match is followed by another number.
-      s[o.i] = o.x;
-    } else { // This match is followed by a string, so coallesce twice.
-      s[o.i] = o.x + s[o.i + 1];
-      s.splice(o.i + 1, 1);
-    }
-    n--;
-  }
-
-  // Special optimization for only a single match.
-  if (s.length === 1) {
-    return s[0] == null ? q[0].x : function() { return b; };
-  }
-
-  // Otherwise, interpolate each of the numbers and rejoin the string.
-  return function(t) {
-    for (i = 0; i < n; ++i) s[(o = q[i]).i] = o.x(t);
-    return s.join("");
-  };
-};
-
-d3.interpolateRgb = function(a, b) {
-  a = d3.rgb(a);
-  b = d3.rgb(b);
-  var ar = a.r,
-      ag = a.g,
-      ab = a.b,
-      br = b.r - ar,
-      bg = b.g - ag,
-      bb = b.b - ab;
-  return function(t) {
-    return "rgb(" + Math.round(ar + br * t)
-        + "," + Math.round(ag + bg * t)
-        + "," + Math.round(ab + bb * t)
-        + ")";
-  };
-};
-
-// interpolates HSL space, but outputs RGB string (for compatibility)
-d3.interpolateHsl = function(a, b) {
-  a = d3.hsl(a);
-  b = d3.hsl(b);
-  var h0 = a.h,
-      s0 = a.s,
-      l0 = a.l,
-      h1 = b.h - h0,
-      s1 = b.s - s0,
-      l1 = b.l - l0;
-  return function(t) {
-    return d3_hsl_rgb(h0 + h1 * t, s0 + s1 * t, l0 + l1 * t).toString();
-  };
-};
-
-d3.interpolateArray = function(a, b) {
-  var x = [],
-      c = [],
-      na = a.length,
-      nb = b.length,
-      n0 = Math.min(a.length, b.length),
-      i;
-  for (i = 0; i < n0; ++i) x.push(d3.interpolate(a[i], b[i]));
-  for (; i < na; ++i) c[i] = a[i];
-  for (; i < nb; ++i) c[i] = b[i];
-  return function(t) {
-    for (i = 0; i < n0; ++i) c[i] = x[i](t);
-    return c;
-  };
-};
-
-d3.interpolateObject = function(a, b) {
-  var i = {},
-      c = {},
-      k;
-  for (k in a) {
-    if (k in b) {
-      i[k] = d3_interpolateByName(k)(a[k], b[k]);
-    } else {
-      c[k] = a[k];
-    }
-  }
-  for (k in b) {
-    if (!(k in a)) {
-      c[k] = b[k];
-    }
-  }
-  return function(t) {
-    for (k in i) c[k] = i[k](t);
-    return c;
-  };
-}
-
-var d3_interpolate_number = /[-+]?(?:\d+\.\d+|\d+\.|\.\d+|\d+)(?:[eE][-]?\d+)?/g,
-    d3_interpolate_rgb = {background: 1, fill: 1, stroke: 1};
-
-function d3_interpolateByName(n) {
-  return n in d3_interpolate_rgb || /\bcolor\b/.test(n)
-      ? d3.interpolateRgb
-      : d3.interpolate;
-}
-
-d3.interpolators = [
-  d3.interpolateObject,
-  function(a, b) { return (b instanceof Array) && d3.interpolateArray(a, b); },
-  function(a, b) { return (typeof b === "string") && d3.interpolateString(String(a), b); },
-  function(a, b) { return (typeof b === "string" ? b in d3_rgb_names || /^(#|rgb\(|hsl\()/.test(b) : b instanceof d3_Rgb || b instanceof d3_Hsl) && d3.interpolateRgb(String(a), b); },
-  function(a, b) { return (typeof b === "number") && d3.interpolateNumber(+a, b); }
-];
-function d3_uninterpolateNumber(a, b) {
-  b = b - (a = +a) ? 1 / (b - a) : 0;
-  return function(x) { return (x - a) * b; };
-}
-
-function d3_uninterpolateClamp(a, b) {
-  b = b - (a = +a) ? 1 / (b - a) : 0;
-  return function(x) { return Math.max(0, Math.min(1, (x - a) * b)); };
-}
-d3.rgb = function(r, g, b) {
-  return arguments.length === 1
-      ? d3_rgb_parse("" + r, d3_rgb, d3_hsl_rgb)
-      : d3_rgb(~~r, ~~g, ~~b);
-};
-
-function d3_rgb(r, g, b) {
-  return new d3_Rgb(r, g, b);
-}
-
-function d3_Rgb(r, g, b) {
-  this.r = r;
-  this.g = g;
-  this.b = b;
-}
-
-d3_Rgb.prototype.brighter = function(k) {
-  k = Math.pow(0.7, arguments.length ? k : 1);
-  var r = this.r,
-      g = this.g,
-      b = this.b,
-      i = 30;
-  if (!r && !g && !b) return d3_rgb(i, i, i);
-  if (r && r < i) r = i;
-  if (g && g < i) g = i;
-  if (b && b < i) b = i;
-  return d3_rgb(
-    Math.min(255, Math.floor(r / k)),
-    Math.min(255, Math.floor(g / k)),
-    Math.min(255, Math.floor(b / k)));
-};
-
-d3_Rgb.prototype.darker = function(k) {
-  k = Math.pow(0.7, arguments.length ? k : 1);
-  return d3_rgb(
-    Math.max(0, Math.floor(k * this.r)),
-    Math.max(0, Math.floor(k * this.g)),
-    Math.max(0, Math.floor(k * this.b)));
-};
-
-d3_Rgb.prototype.hsl = function() {
-  return d3_rgb_hsl(this.r, this.g, this.b);
-};
-
-d3_Rgb.prototype.toString = function() {
-  return "#" + d3_rgb_hex(this.r) + d3_rgb_hex(this.g) + d3_rgb_hex(this.b);
-};
-
-function d3_rgb_hex(v) {
-  return v < 0x10 ? "0" + v.toString(16) : v.toString(16);
-}
-
-function d3_rgb_parse(format, rgb, hsl) {
-  var r = 0, // red channel; int in [0, 255]
-      g = 0, // green channel; int in [0, 255]
-      b = 0, // blue channel; int in [0, 255]
-      m1, // CSS color specification match
-      m2, // CSS color specification type (e.g., rgb)
-      name;
-
-  /* Handle hsl, rgb. */
-  m1 = /([a-z]+)\((.*)\)/i.exec(format);
-  if (m1) {
-    m2 = m1[2].split(",");
-    switch (m1[1]) {
-      case "hsl": {
-        return hsl(
-          parseFloat(m2[0]), // degrees
-          parseFloat(m2[1]) / 100, // percentage
-          parseFloat(m2[2]) / 100 // percentage
-        );
-      }
-      case "rgb": {
-        return rgb(
-          d3_rgb_parseNumber(m2[0]),
-          d3_rgb_parseNumber(m2[1]),
-          d3_rgb_parseNumber(m2[2])
-        );
-      }
-    }
-  }
-
-  /* Named colors. */
-  if (name = d3_rgb_names[format]) return rgb(name.r, name.g, name.b);
-
-  /* Hexadecimal colors: #rgb and #rrggbb. */
-  if (format != null && format.charAt(0) === "#") {
-    if (format.length === 4) {
-      r = format.charAt(1); r += r;
-      g = format.charAt(2); g += g;
-      b = format.charAt(3); b += b;
-    } else if (format.length === 7) {
-      r = format.substring(1, 3);
-      g = format.substring(3, 5);
-      b = format.substring(5, 7);
-    }
-    r = parseInt(r, 16);
-    g = parseInt(g, 16);
-    b = parseInt(b, 16);
-  }
-
-  return rgb(r, g, b);
-}
-
-function d3_rgb_hsl(r, g, b) {
-  var min = Math.min(r /= 255, g /= 255, b /= 255),
-      max = Math.max(r, g, b),
-      d = max - min,
-      h,
-      s,
-      l = (max + min) / 2;
-  if (d) {
-    s = l < .5 ? d / (max + min) : d / (2 - max - min);
-    if (r == max) h = (g - b) / d + (g < b ? 6 : 0);
-    else if (g == max) h = (b - r) / d + 2;
-    else h = (r - g) / d + 4;
-    h *= 60;
-  } else {
-    s = h = 0;
-  }
-  return d3_hsl(h, s, l);
-}
-
-function d3_rgb_parseNumber(c) { // either integer or percentage
-  var f = parseFloat(c);
-  return c.charAt(c.length - 1) === "%" ? Math.round(f * 2.55) : f;
-}
-
-var d3_rgb_names = {
-  aliceblue: "#f0f8ff",
-  antiquewhite: "#faebd7",
-  aqua: "#00ffff",
-  aquamarine: "#7fffd4",
-  azure: "#f0ffff",
-  beige: "#f5f5dc",
-  bisque: "#ffe4c4",
-  black: "#000000",
-  blanchedalmond: "#ffebcd",
-  blue: "#0000ff",
-  blueviolet: "#8a2be2",
-  brown: "#a52a2a",
-  burlywood: "#deb887",
-  cadetblue: "#5f9ea0",
-  chartreuse: "#7fff00",
-  chocolate: "#d2691e",
-  coral: "#ff7f50",
-  cornflowerblue: "#6495ed",
-  cornsilk: "#fff8dc",
-  crimson: "#dc143c",
-  cyan: "#00ffff",
-  darkblue: "#00008b",
-  darkcyan: "#008b8b",
-  darkgoldenrod: "#b8860b",
-  darkgray: "#a9a9a9",
-  darkgreen: "#006400",
-  darkgrey: "#a9a9a9",
-  darkkhaki: "#bdb76b",
-  darkmagenta: "#8b008b",
-  darkolivegreen: "#556b2f",
-  darkorange: "#ff8c00",
-  darkorchid: "#9932cc",
-  darkred: "#8b0000",
-  darksalmon: "#e9967a",
-  darkseagreen: "#8fbc8f",
-  darkslateblue: "#483d8b",
-  darkslategray: "#2f4f4f",
-  darkslategrey: "#2f4f4f",
-  darkturquoise: "#00ced1",
-  darkviolet: "#9400d3",
-  deeppink: "#ff1493",
-  deepskyblue: "#00bfff",
-  dimgray: "#696969",
-  dimgrey: "#696969",
-  dodgerblue: "#1e90ff",
-  firebrick: "#b22222",
-  floralwhite: "#fffaf0",
-  forestgreen: "#228b22",
-  fuchsia: "#ff00ff",
-  gainsboro: "#dcdcdc",
-  ghostwhite: "#f8f8ff",
-  gold: "#ffd700",
-  goldenrod: "#daa520",
-  gray: "#808080",
-  green: "#008000",
-  greenyellow: "#adff2f",
-  grey: "#808080",
-  honeydew: "#f0fff0",
-  hotpink: "#ff69b4",
-  indianred: "#cd5c5c",
-  indigo: "#4b0082",
-  ivory: "#fffff0",
-  khaki: "#f0e68c",
-  lavender: "#e6e6fa",
-  lavenderblush: "#fff0f5",
-  lawngreen: "#7cfc00",
-  lemonchiffon: "#fffacd",
-  lightblue: "#add8e6",
-  lightcoral: "#f08080",
-  lightcyan: "#e0ffff",
-  lightgoldenrodyellow: "#fafad2",
-  lightgray: "#d3d3d3",
-  lightgreen: "#90ee90",
-  lightgrey: "#d3d3d3",
-  lightpink: "#ffb6c1",
-  lightsalmon: "#ffa07a",
-  lightseagreen: "#20b2aa",
-  lightskyblue: "#87cefa",
-  lightslategray: "#778899",
-  lightslategrey: "#778899",
-  lightsteelblue: "#b0c4de",
-  lightyellow: "#ffffe0",
-  lime: "#00ff00",
-  limegreen: "#32cd32",
-  linen: "#faf0e6",
-  magenta: "#ff00ff",
-  maroon: "#800000",
-  mediumaquamarine: "#66cdaa",
-  mediumblue: "#0000cd",
-  mediumorchid: "#ba55d3",
-  mediumpurple: "#9370db",
-  mediumseagreen: "#3cb371",
-  mediumslateblue: "#7b68ee",
-  mediumspringgreen: "#00fa9a",
-  mediumturquoise: "#48d1cc",
-  mediumvioletred: "#c71585",
-  midnightblue: "#191970",
-  mintcream: "#f5fffa",
-  mistyrose: "#ffe4e1",
-  moccasin: "#ffe4b5",
-  navajowhite: "#ffdead",
-  navy: "#000080",
-  oldlace: "#fdf5e6",
-  olive: "#808000",
-  olivedrab: "#6b8e23",
-  orange: "#ffa500",
-  orangered: "#ff4500",
-  orchid: "#da70d6",
-  palegoldenrod: "#eee8aa",
-  palegreen: "#98fb98",
-  paleturquoise: "#afeeee",
-  palevioletred: "#db7093",
-  papayawhip: "#ffefd5",
-  peachpuff: "#ffdab9",
-  peru: "#cd853f",
-  pink: "#ffc0cb",
-  plum: "#dda0dd",
-  powderblue: "#b0e0e6",
-  purple: "#800080",
-  red: "#ff0000",
-  rosybrown: "#bc8f8f",
-  royalblue: "#4169e1",
-  saddlebrown: "#8b4513",
-  salmon: "#fa8072",
-  sandybrown: "#f4a460",
-  seagreen: "#2e8b57",
-  seashell: "#fff5ee",
-  sienna: "#a0522d",
-  silver: "#c0c0c0",
-  skyblue: "#87ceeb",
-  slateblue: "#6a5acd",
-  slategray: "#708090",
-  slategrey: "#708090",
-  snow: "#fffafa",
-  springgreen: "#00ff7f",
-  steelblue: "#4682b4",
-  tan: "#d2b48c",
-  teal: "#008080",
-  thistle: "#d8bfd8",
-  tomato: "#ff6347",
-  turquoise: "#40e0d0",
-  violet: "#ee82ee",
-  wheat: "#f5deb3",
-  white: "#ffffff",
-  whitesmoke: "#f5f5f5",
-  yellow: "#ffff00",
-  yellowgreen: "#9acd32"
-};
-
-for (var d3_rgb_name in d3_rgb_names) {
-  d3_rgb_names[d3_rgb_name] = d3_rgb_parse(
-      d3_rgb_names[d3_rgb_name],
-      d3_rgb,
-      d3_hsl_rgb);
-}
-d3.hsl = function(h, s, l) {
-  return arguments.length === 1
-      ? d3_rgb_parse("" + h, d3_rgb_hsl, d3_hsl)
-      : d3_hsl(+h, +s, +l);
-};
-
-function d3_hsl(h, s, l) {
-  return new d3_Hsl(h, s, l);
-}
-
-function d3_Hsl(h, s, l) {
-  this.h = h;
-  this.s = s;
-  this.l = l;
-}
-
-d3_Hsl.prototype.brighter = function(k) {
-  k = Math.pow(0.7, arguments.length ? k : 1);
-  return d3_hsl(this.h, this.s, this.l / k);
-};
-
-d3_Hsl.prototype.darker = function(k) {
-  k = Math.pow(0.7, arguments.length ? k : 1);
-  return d3_hsl(this.h, this.s, k * this.l);
-};
-
-d3_Hsl.prototype.rgb = function() {
-  return d3_hsl_rgb(this.h, this.s, this.l);
-};
-
-d3_Hsl.prototype.toString = function() {
-  return "hsl(" + this.h + "," + this.s * 100 + "%," + this.l * 100 + "%)";
-};
-
-function d3_hsl_rgb(h, s, l) {
-  var m1,
-      m2;
-
-  /* Some simple corrections for h, s and l. */
-  h = h % 360; if (h < 0) h += 360;
-  s = s < 0 ? 0 : s > 1 ? 1 : s;
-  l = l < 0 ? 0 : l > 1 ? 1 : l;
-
-  /* From FvD 13.37, CSS Color Module Level 3 */
-  m2 = l <= .5 ? l * (1 + s) : l + s - l * s;
-  m1 = 2 * l - m2;
-
-  function v(h) {
-    if (h > 360) h -= 360;
-    else if (h < 0) h += 360;
-    if (h < 60) return m1 + (m2 - m1) * h / 60;
-    if (h < 180) return m2;
-    if (h < 240) return m1 + (m2 - m1) * (240 - h) / 60;
-    return m1;
-  }
-
-  function vv(h) {
-    return Math.round(v(h) * 255);
-  }
-
-  return d3_rgb(vv(h + 120), vv(h), vv(h - 120));
-}
-function d3_selection(groups) {
-  d3_arraySubclass(groups, d3_selectionPrototype);
-  return groups;
-}
-
-var d3_select = function(s, n) { return n.querySelector(s); },
-    d3_selectAll = function(s, n) { return n.querySelectorAll(s); };
-
-// Prefer Sizzle, if available.
-if (typeof Sizzle === "function") {
-  d3_select = function(s, n) { return Sizzle(s, n)[0]; };
-  d3_selectAll = function(s, n) { return Sizzle.uniqueSort(Sizzle(s, n)); };
-}
-
-var d3_selectionPrototype = [];
-
-d3.selection = function() {
-  return d3_selectionRoot;
-};
-
-d3.selection.prototype = d3_selectionPrototype;
-d3_selectionPrototype.select = function(selector) {
-  var subgroups = [],
-      subgroup,
-      subnode,
-      group,
-      node;
-
-  if (typeof selector !== "function") selector = d3_selection_selector(selector);
-
-  for (var j = -1, m = this.length; ++j < m;) {
-    subgroups.push(subgroup = []);
-    subgroup.parentNode = (group = this[j]).parentNode;
-    for (var i = -1, n = group.length; ++i < n;) {
-      if (node = group[i]) {
-        subgroup.push(subnode = selector.call(node, node.__data__, i));
-        if (subnode && "__data__" in node) subnode.__data__ = node.__data__;
-      } else {
-        subgroup.push(null);
-      }
-    }
-  }
-
-  return d3_selection(subgroups);
-};
-
-function d3_selection_selector(selector) {
-  return function() {
-    return d3_select(selector, this);
-  };
-}
-d3_selectionPrototype.selectAll = function(selector) {
-  var subgroups = [],
-      subgroup,
-      node;
-
-  if (typeof selector !== "function") selector = d3_selection_selectorAll(selector);
-
-  for (var j = -1, m = this.length; ++j < m;) {
-    for (var group = this[j], i = -1, n = group.length; ++i < n;) {
-      if (node = group[i]) {
-        subgroups.push(subgroup = d3_array(selector.call(node, node.__data__, i)));
-        subgroup.parentNode = node;
-      }
-    }
-  }
-
-  return d3_selection(subgroups);
-};
-
-function d3_selection_selectorAll(selector) {
-  return function() {
-    return d3_selectAll(selector, this);
-  };
-}
-d3_selectionPrototype.attr = function(name, value) {
-  name = d3.ns.qualify(name);
-
-  // If no value is specified, return the first value.
-  if (arguments.length < 2) {
-    var node = this.node();
-    return name.local
-        ? node.getAttributeNS(name.space, name.local)
-        : node.getAttribute(name);
-  }
-
-  function attrNull() {
-    this.removeAttribute(name);
-  }
-
-  function attrNullNS() {
-    this.removeAttributeNS(name.space, name.local);
-  }
-
-  function attrConstant() {
-    this.setAttribute(name, value);
-  }
-
-  function attrConstantNS() {
-    this.setAttributeNS(name.space, name.local, value);
-  }
-
-  function attrFunction() {
-    var x = value.apply(this, arguments);
-    if (x == null) this.removeAttribute(name);
-    else this.setAttribute(name, x);
-  }
-
-  function attrFunctionNS() {
-    var x = value.apply(this, arguments);
-    if (x == null) this.removeAttributeNS(name.space, name.local);
-    else this.setAttributeNS(name.space, name.local, x);
-  }
-
-  return this.each(value == null
-      ? (name.local ? attrNullNS : attrNull) : (typeof value === "function"
-      ? (name.local ? attrFunctionNS : attrFunction)
-      : (name.local ? attrConstantNS : attrConstant)));
-};
-d3_selectionPrototype.classed = function(name, value) {
-  var re = new RegExp("(^|\\s+)" + d3.requote(name) + "(\\s+|$)", "g");
-
-  // If no value is specified, return the first value.
-  if (arguments.length < 2) {
-    var node = this.node();
-    if (c = node.classList) return c.contains(name);
-    var c = node.className;
-    re.lastIndex = 0;
-    return re.test(c.baseVal != null ? c.baseVal : c);
-  }
-
-  function classedAdd() {
-    if (c = this.classList) return c.add(name);
-    var c = this.className,
-        cb = c.baseVal != null,
-        cv = cb ? c.baseVal : c;
-    re.lastIndex = 0;
-    if (!re.test(cv)) {
-      cv = d3_collapse(cv + " " + name);
-      if (cb) c.baseVal = cv;
-      else this.className = cv;
-    }
-  }
-
-  function classedRemove() {
-    if (c = this.classList) return c.remove(name);
-    var c = this.className,
-        cb = c.baseVal != null,
-        cv = cb ? c.baseVal : c;
-    cv = d3_collapse(cv.replace(re, " "));
-    if (cb) c.baseVal = cv;
-    else this.className = cv;
-  }
-
-  function classedFunction() {
-    (value.apply(this, arguments)
-        ? classedAdd
-        : classedRemove).call(this);
-  }
-
-  return this.each(typeof value === "function"
-      ? classedFunction : value
-      ? classedAdd
-      : classedRemove);
-};
-d3_selectionPrototype.style = function(name, value, priority) {
-  if (arguments.length < 3) priority = "";
-
-  // If no value is specified, return the first value.
-  if (arguments.length < 2) return window
-      .getComputedStyle(this.node(), null)
-      .getPropertyValue(name);
-
-  function styleNull() {
-    this.style.removeProperty(name);
-  }
-
-  function styleConstant() {
-    this.style.setProperty(name, value, priority);
-  }
-
-  function styleFunction() {
-    var x = value.apply(this, arguments);
-    if (x == null) this.style.removeProperty(name);
-    else this.style.setProperty(name, x, priority);
-  }
-
-  return this.each(value == null
-      ? styleNull : (typeof value === "function"
-      ? styleFunction : styleConstant));
-};
-d3_selectionPrototype.property = function(name, value) {
-
-  // If no value is specified, return the first value.
-  if (arguments.length < 2) return this.node()[name];
-
-  function propertyNull() {
-    delete this[name];
-  }
-
-  function propertyConstant() {
-    this[name] = value;
-  }
-
-  function propertyFunction() {
-    var x = value.apply(this, arguments);
-    if (x == null) delete this[name];
-    else this[name] = x;
-  }
-
-  return this.each(value == null
-      ? propertyNull : (typeof value === "function"
-      ? propertyFunction : propertyConstant));
-};
-d3_selectionPrototype.text = function(value) {
-  return arguments.length < 1 ? this.node().textContent
-      : (this.each(typeof value === "function"
-      ? function() { this.textContent = value.apply(this, arguments); }
-      : function() { this.textContent = value; }));
-};
-d3_selectionPrototype.html = function(value) {
-  return arguments.length < 1 ? this.node().innerHTML
-      : (this.each(typeof value === "function"
-      ? function() { this.innerHTML = value.apply(this, arguments); }
-      : function() { this.innerHTML = value; }));
-};
-// TODO append(node)?
-// TODO append(function)?
-d3_selectionPrototype.append = function(name) {
-  name = d3.ns.qualify(name);
-
-  function append() {
-    return this.appendChild(document.createElement(name));
-  }
-
-  function appendNS() {
-    return this.appendChild(document.createElementNS(name.space, name.local));
-  }
-
-  return this.select(name.local ? appendNS : append);
-};
-// TODO insert(node, function)?
-// TODO insert(function, string)?
-// TODO insert(function, function)?
-d3_selectionPrototype.insert = function(name, before) {
-  name = d3.ns.qualify(name);
-
-  function insert() {
-    return this.insertBefore(
-        document.createElement(name),
-        d3_select(before, this));
-  }
-
-  function insertNS() {
-    return this.insertBefore(
-        document.createElementNS(name.space, name.local),
-        d3_select(before, this));
-  }
-
-  return this.select(name.local ? insertNS : insert);
-};
-// TODO remove(selector)?
-// TODO remove(node)?
-// TODO remove(function)?
-d3_selectionPrototype.remove = function() {
-  return this.each(function() {
-    var parent = this.parentNode;
-    if (parent) parent.removeChild(this);
-  });
-};
-// TODO data(null) for clearing data?
-d3_selectionPrototype.data = function(data, join) {
-  var enter = [],
-      update = [],
-      exit = [];
-
-  function bind(group, groupData) {
-    var i,
-        n = group.length,
-        m = groupData.length,
-        n0 = Math.min(n, m),
-        n1 = Math.max(n, m),
-        updateNodes = [],
-        enterNodes = [],
-        exitNodes = [],
-        node,
-        nodeData;
-
-    if (join) {
-      var nodeByKey = {},
-          keys = [],
-          key,
-          j = groupData.length;
-
-      for (i = -1; ++i < n;) {
-        key = join.call(node = group[i], node.__data__, i);
-        if (key in nodeByKey) {
-          exitNodes[j++] = node; // duplicate key
-        } else {
-          nodeByKey[key] = node;
-        }
-        keys.push(key);
-      }
-
-      for (i = -1; ++i < m;) {
-        node = nodeByKey[key = join.call(groupData, nodeData = groupData[i], i)];
-        if (node) {
-          node.__data__ = nodeData;
-          updateNodes[i] = node;
-          enterNodes[i] = exitNodes[i] = null;
-        } else {
-          enterNodes[i] = d3_selection_dataNode(nodeData);
-          updateNodes[i] = exitNodes[i] = null;
-        }
-        delete nodeByKey[key];
-      }
-
-      for (i = -1; ++i < n;) {
-        if (keys[i] in nodeByKey) {
-          exitNodes[i] = group[i];
-        }
-      }
-    } else {
-      for (i = -1; ++i < n0;) {
-        node = group[i];
-        nodeData = groupData[i];
-        if (node) {
-          node.__data__ = nodeData;
-          updateNodes[i] = node;
-          enterNodes[i] = exitNodes[i] = null;
-        } else {
-          enterNodes[i] = d3_selection_dataNode(nodeData);
-          updateNodes[i] = exitNodes[i] = null;
-        }
-      }
-      for (; i < m; ++i) {
-        enterNodes[i] = d3_selection_dataNode(groupData[i]);
-        updateNodes[i] = exitNodes[i] = null;
-      }
-      for (; i < n1; ++i) {
-        exitNodes[i] = group[i];
-        enterNodes[i] = updateNodes[i] = null;
-      }
-    }
-
-    enterNodes.update
-        = updateNodes;
-
-    enterNodes.parentNode
-        = updateNodes.parentNode
-        = exitNodes.parentNode
-        = group.parentNode;
-
-    enter.push(enterNodes);
-    update.push(updateNodes);
-    exit.push(exitNodes);
-  }
-
-  var i = -1,
-      n = this.length,
-      group;
-  if (typeof data === "function") {
-    while (++i < n) {
-      bind(group = this[i], data.call(group, group.parentNode.__data__, i));
-    }
-  } else {
-    while (++i < n) {
-      bind(group = this[i], data);
-    }
-  }
-
-  var selection = d3_selection(update);
-  selection.enter = function() { return d3_selection_enter(enter); };
-  selection.exit = function() { return d3_selection(exit); };
-  return selection;
-};
-
-function d3_selection_dataNode(data) {
-  return {__data__: data};
-}
-function d3_selection_enter(selection) {
-  d3_arraySubclass(selection, d3_selection_enterPrototype);
-  return selection;
-}
-
-var d3_selection_enterPrototype = [];
-
-d3_selection_enterPrototype.append = d3_selectionPrototype.append;
-d3_selection_enterPrototype.insert = d3_selectionPrototype.insert;
-d3_selection_enterPrototype.empty = d3_selectionPrototype.empty;
-d3_selection_enterPrototype.select = function(selector) {
-  var subgroups = [],
-      subgroup,
-      subnode,
-      upgroup,
-      group,
-      node;
-
-  for (var j = -1, m = this.length; ++j < m;) {
-    upgroup = (group = this[j]).update;
-    subgroups.push(subgroup = []);
-    subgroup.parentNode = group.parentNode;
-    for (var i = -1, n = group.length; ++i < n;) {
-      if (node = group[i]) {
-        subgroup.push(upgroup[i] = subnode = selector.call(group.parentNode, node.__data__, i));
-        subnode.__data__ = node.__data__;
-      } else {
-        subgroup.push(null);
-      }
-    }
-  }
-
-  return d3_selection(subgroups);
-};
-// TODO preserve null elements to maintain index?
-d3_selectionPrototype.filter = function(filter) {
-  var subgroups = [],
-      subgroup,
-      group,
-      node;
-
-  for (var j = 0, m = this.length; j < m; j++) {
-    subgroups.push(subgroup = []);
-    subgroup.parentNode = (group = this[j]).parentNode;
-    for (var i = 0, n = group.length; i < n; i++) {
-      if ((node = group[i]) && filter.call(node, node.__data__, i)) {
-        subgroup.push(node);
-      }
-    }
-  }
-
-  return d3_selection(subgroups);
-};
-d3_selectionPrototype.map = function(map) {
-  return this.each(function() {
-    this.__data__ = map.apply(this, arguments);
-  });
-};
-d3_selectionPrototype.sort = function(comparator) {
-  comparator = d3_selection_sortComparator.apply(this, arguments);
-  for (var j = 0, m = this.length; j < m; j++) {
-    for (var group = this[j].sort(comparator), i = 1, n = group.length, prev = group[0]; i < n; i++) {
-      var node = group[i];
-      if (node) {
-        if (prev) prev.parentNode.insertBefore(node, prev.nextSibling);
-        prev = node;
-      }
-    }
-  }
-  return this;
-};
-
-function d3_selection_sortComparator(comparator) {
-  if (!arguments.length) comparator = d3.ascending;
-  return function(a, b) {
-    return comparator(a && a.__data__, b && b.__data__);
-  };
-}
-// type can be namespaced, e.g., "click.foo"
-// listener can be null for removal
-d3_selectionPrototype.on = function(type, listener, capture) {
-  if (arguments.length < 3) capture = false;
-
-  // parse the type specifier
-  var name = "__on" + type, i = type.indexOf(".");
-  if (i > 0) type = type.substring(0, i);
-
-  // if called with only one argument, return the current listener
-  if (arguments.length < 2) return (i = this.node()[name]) && i._;
-
-  // remove the old event listener, and add the new event listener
-  return this.each(function(d, i) {
-    var node = this;
-
-    if (node[name]) node.removeEventListener(type, node[name], capture);
-    if (listener) node.addEventListener(type, node[name] = l, capture);
-
-    // wrapped event listener that preserves i
-    function l(e) {
-      var o = d3.event; // Events can be reentrant (e.g., focus).
-      d3.event = e;
-      try {
-        listener.call(node, node.__data__, i);
-      } finally {
-        d3.event = o;
-      }
-    }
-
-    // stash the unwrapped listener for retrieval
-    l._ = listener;
-  });
-};
-d3_selectionPrototype.each = function(callback) {
-  for (var j = -1, m = this.length; ++j < m;) {
-    for (var group = this[j], i = -1, n = group.length; ++i < n;) {
-      var node = group[i];
-      if (node) callback.call(node, node.__data__, i, j);
-    }
-  }
-  return this;
-};
-//
-// Note: assigning to the arguments array simultaneously changes the value of
-// the corresponding argument!
-//
-// TODO The `this` argument probably shouldn't be the first argument to the
-// callback, anyway, since it's redundant. However, that will require a major
-// version bump due to backwards compatibility, so I'm not changing it right
-// away.
-//
-d3_selectionPrototype.call = function(callback) {
-  callback.apply(this, (arguments[0] = this, arguments));
-  return this;
-};
-d3_selectionPrototype.empty = function() {
-  return !this.node();
-};
-d3_selectionPrototype.node = function(callback) {
-  for (var j = 0, m = this.length; j < m; j++) {
-    for (var group = this[j], i = 0, n = group.length; i < n; i++) {
-      var node = group[i];
-      if (node) return node;
-    }
-  }
-  return null;
-};
-d3_selectionPrototype.transition = function() {
-  var subgroups = [],
-      subgroup,
-      node;
-
-  for (var j = -1, m = this.length; ++j < m;) {
-    subgroups.push(subgroup = []);
-    for (var group = this[j], i = -1, n = group.length; ++i < n;) {
-      subgroup.push((node = group[i]) ? {node: node, delay: 0, duration: 250} : null);
-    }
-  }
-
-  return d3_transition(subgroups, d3_transitionInheritId || ++d3_transitionId);
-};
-var d3_selectionRoot = d3_selection([[document]]);
-
-d3_selectionRoot[0].parentNode = document.documentElement;
-
-// TODO fast singleton implementation!
-// TODO select(function)
-d3.select = function(selector) {
-  return typeof selector === "string"
-      ? d3_selectionRoot.select(selector)
-      : d3_selection([[selector]]); // assume node
-};
-
-// TODO selectAll(function)
-d3.selectAll = function(selector) {
-  return typeof selector === "string"
-      ? d3_selectionRoot.selectAll(selector)
-      : d3_selection([d3_array(selector)]); // assume node[]
-};
-function d3_transition(groups, id) {
-  d3_arraySubclass(groups, d3_transitionPrototype);
-
-  var tweens = {},
-      event = d3.dispatch("start", "end"),
-      ease = d3_transitionEase,
-      then = Date.now();
-
-  groups.id = id;
-
-  groups.tween = function(name, tween) {
-    if (arguments.length < 2) return tweens[name];
-    if (tween == null) delete tweens[name];
-    else tweens[name] = tween;
-    return groups;
-  };
-
-  groups.ease = function(value) {
-    if (!arguments.length) return ease;
-    ease = typeof value === "function" ? value : d3.ease.apply(d3, arguments);
-    return groups;
-  };
-
-  groups.each = function(type, listener) {
-    if (arguments.length < 2) return d3_transition_each.call(groups, type);
-    event[type].add(listener);
-    return groups;
-  };
-
-  d3.timer(function(elapsed) {
-    groups.each(function(d, i, j) {
-      var tweened = [],
-          node = this,
-          delay = groups[j][i].delay,
-          duration = groups[j][i].duration,
-          lock = node.__transition__ || (node.__transition__ = {active: 0, count: 0});
-
-      ++lock.count;
-
-      delay <= elapsed ? start(elapsed) : d3.timer(start, delay, then);
-
-      function start(elapsed) {
-        if (lock.active > id) return stop();
-        lock.active = id;
-
-        for (var tween in tweens) {
-          if (tween = tweens[tween].call(node, d, i)) {
-            tweened.push(tween);
-          }
-        }
-
-        event.start.dispatch.call(node, d, i);
-        if (!tick(elapsed)) d3.timer(tick, 0, then);
-        return 1;
-      }
-
-      function tick(elapsed) {
-        if (lock.active !== id) return stop();
-
-        var t = (elapsed - delay) / duration,
-            e = ease(t),
-            n = tweened.length;
-
-        while (n > 0) {
-          tweened[--n].call(node, e);
-        }
-
-        if (t >= 1) {
-          stop();
-          d3_transitionInheritId = id;
-          event.end.dispatch.call(node, d, i);
-          d3_transitionInheritId = 0;
-          return 1;
-        }
-      }
-
-      function stop() {
-        if (!--lock.count) delete node.__transition__;
-        return 1;
-      }
-    });
-    return 1;
-  }, 0, then);
-
-  return groups;
-}
-
-function d3_transitionTween(b) {
-  return typeof b === "function"
-      ? function(d, i, a) { var v = b.call(this, d, i) + ""; return a != v && d3.interpolate(a, v); }
-      : (b = b + "", function(d, i, a) { return a != b && d3.interpolate(a, b); });
-}
-
-var d3_transitionPrototype = [],
-    d3_transitionId = 0,
-    d3_transitionInheritId = 0,
-    d3_transitionEase = d3.ease("cubic-in-out");
-
-d3_transitionPrototype.call = d3_selectionPrototype.call;
-
-d3.transition = function() {
-  return d3_selectionRoot.transition();
-};
-
-d3.transition.prototype = d3_transitionPrototype;
-d3_transitionPrototype.select = function(selector) {
-  var subgroups = [],
-      subgroup,
-      subnode,
-      node;
-
-  if (typeof selector !== "function") selector = d3_selection_selector(selector);
-
-  for (var j = -1, m = this.length; ++j < m;) {
-    subgroups.push(subgroup = []);
-    for (var group = this[j], i = -1, n = group.length; ++i < n;) {
-      if ((node = group[i]) && (subnode = selector.call(node.node, node.node.__data__, i))) {
-        if ("__data__" in node.node) subnode.__data__ = node.node.__data__;
-        subgroup.push({node: subnode, delay: node.delay, duration: node.duration});
-      } else {
-        subgroup.push(null);
-      }
-    }
-  }
-
-  return d3_transition(subgroups, this.id).ease(this.ease());
-};
-d3_transitionPrototype.selectAll = function(selector) {
-  var subgroups = [],
-      subgroup,
-      subnodes,
-      node;
-
-  if (typeof selector !== "function") selector = d3_selection_selectorAll(selector);
-
-  for (var j = -1, m = this.length; ++j < m;) {
-    for (var group = this[j], i = -1, n = group.length; ++i < n;) {
-      if (node = group[i]) {
-        subnodes = selector.call(node.node, node.node.__data__, i);
-        subgroups.push(subgroup = []);
-        for (var k = -1, o = subnodes.length; ++k < o;) {
-          subgroup.push({node: subnodes[k], delay: node.delay, duration: node.duration});
-        }
-      }
-    }
-  }
-
-  return d3_transition(subgroups, this.id).ease(this.ease());
-};
-d3_transitionPrototype.attr = function(name, value) {
-  return this.attrTween(name, d3_transitionTween(value));
-};
-
-d3_transitionPrototype.attrTween = function(name, tween) {
-  name = d3.ns.qualify(name);
-
-  function attrTween(d, i) {
-    var f = tween.call(this, d, i, this.getAttribute(name));
-    return f && function(t) {
-      this.setAttribute(name, f(t));
-    };
-  }
-
-  function attrTweenNS(d, i) {
-    var f = tween.call(this, d, i, this.getAttributeNS(name.space, name.local));
-    return f && function(t) {
-      this.setAttributeNS(name.space, name.local, f(t));
-    };
-  }
-
-  return this.tween("attr." + name, name.local ? attrTweenNS : attrTween);
-};
-d3_transitionPrototype.style = function(name, value, priority) {
-  if (arguments.length < 3) priority = "";
-  return this.styleTween(name, d3_transitionTween(value), priority);
-};
-
-d3_transitionPrototype.styleTween = function(name, tween, priority) {
-  if (arguments.length < 3) priority = "";
-  return this.tween("style." + name, function(d, i) {
-    var f = tween.call(this, d, i, window.getComputedStyle(this, null).getPropertyValue(name));
-    return f && function(t) {
-      this.style.setProperty(name, f(t), priority);
-    };
-  });
-};
-d3_transitionPrototype.text = function(value) {
-  return this.tween("text", function(d, i) {
-    this.textContent = typeof value === "function"
-        ? value.call(this, d, i)
-        : value;
-  });
-};
-d3_transitionPrototype.remove = function() {
-  return this.each("end", function() {
-    var p;
-    if (!this.__transition__ && (p = this.parentNode)) p.removeChild(this);
-  });
-};
-d3_transitionPrototype.delay = function(value) {
-  var groups = this;
-  return groups.each(typeof value === "function"
-      ? function(d, i, j) { groups[j][i].delay = +value.apply(this, arguments); }
-      : (value = +value, function(d, i, j) { groups[j][i].delay = value; }));
-};
-d3_transitionPrototype.duration = function(value) {
-  var groups = this;
-  return groups.each(typeof value === "function"
-      ? function(d, i, j) { groups[j][i].duration = +value.apply(this, arguments); }
-      : (value = +value, function(d, i, j) { groups[j][i].duration = value; }));
-};
-function d3_transition_each(callback) {
-  for (var j = 0, m = this.length; j < m; j++) {
-    for (var group = this[j], i = 0, n = group.length; i < n; i++) {
-      var node = group[i];
-      if (node) callback.call(node = node.node, node.__data__, i, j);
-    }
-  }
-  return this;
-}
-d3_transitionPrototype.transition = function() {
-  return this.select(d3_this);
-};
-var d3_timer_queue = null,
-    d3_timer_interval, // is an interval (or frame) active?
-    d3_timer_timeout; // is a timeout active?
-
-// The timer will continue to fire until callback returns true.
-d3.timer = function(callback, delay, then) {
-  var found = false,
-      t0,
-      t1 = d3_timer_queue;
-
-  if (arguments.length < 3) {
-    if (arguments.length < 2) delay = 0;
-    else if (!isFinite(delay)) return;
-    then = Date.now();
-  }
-
-  // See if the callback's already in the queue.
-  while (t1) {
-    if (t1.callback === callback) {
-      t1.then = then;
-      t1.delay = delay;
-      found = true;
-      break;
-    }
-    t0 = t1;
-    t1 = t1.next;
-  }
-
-  // Otherwise, add the callback to the queue.
-  if (!found) d3_timer_queue = {
-    callback: callback,
-    then: then,
-    delay: delay,
-    next: d3_timer_queue
-  };
-
-  // Start animatin'!
-  if (!d3_timer_interval) {
-    d3_timer_timeout = clearTimeout(d3_timer_timeout);
-    d3_timer_interval = 1;
-    d3_timer_frame(d3_timer_step);
-  }
-}
-
-function d3_timer_step() {
-  var elapsed,
-      now = Date.now(),
-      t1 = d3_timer_queue;
-
-  while (t1) {
-    elapsed = now - t1.then;
-    if (elapsed >= t1.delay) t1.flush = t1.callback(elapsed);
-    t1 = t1.next;
-  }
-
-  var delay = d3_timer_flush() - now;
-  if (delay > 24) {
-    if (isFinite(delay)) {
-      clearTimeout(d3_timer_timeout);
-      d3_timer_timeout = setTimeout(d3_timer_step, delay);
-    }
-    d3_timer_interval = 0;
-  } else {
-    d3_timer_interval = 1;
-    d3_timer_frame(d3_timer_step);
-  }
-}
-
-d3.timer.flush = function() {
-  var elapsed,
-      now = Date.now(),
-      t1 = d3_timer_queue;
-
-  while (t1) {
-    elapsed = now - t1.then;
-    if (!t1.delay) t1.flush = t1.callback(elapsed);
-    t1 = t1.next;
-  }
-
-  d3_timer_flush();
-};
-
-// Flush after callbacks, to avoid concurrent queue modification.
-function d3_timer_flush() {
-  var t0 = null,
-      t1 = d3_timer_queue,
-      then = Infinity;
-  while (t1) {
-    if (t1.flush) {
-      t1 = t0 ? t0.next = t1.next : d3_timer_queue = t1.next;
-    } else {
-      then = Math.min(then, t1.then + t1.delay);
-      t1 = (t0 = t1).next;
-    }
-  }
-  return then;
-}
-
-var d3_timer_frame = window.requestAnimationFrame
-    || window.webkitRequestAnimationFrame
-    || window.mozRequestAnimationFrame
-    || window.oRequestAnimationFrame
-    || window.msRequestAnimationFrame
-    || function(callback) { setTimeout(callback, 17); };
-function d3_noop() {}
-d3.scale = {};
-
-function d3_scaleExtent(domain) {
-  var start = domain[0], stop = domain[domain.length - 1];
-  return start < stop ? [start, stop] : [stop, start];
-}
-function d3_scale_nice(domain, nice) {
-  var i0 = 0,
-      i1 = domain.length - 1,
-      x0 = domain[i0],
-      x1 = domain[i1],
-      dx;
-
-  if (x1 < x0) {
-    dx = i0; i0 = i1; i1 = dx;
-    dx = x0; x0 = x1; x1 = dx;
-  }
-
-  nice = nice(x1 - x0);
-  domain[i0] = nice.floor(x0);
-  domain[i1] = nice.ceil(x1);
-  return domain;
-}
-
-function d3_scale_niceDefault() {
-  return Math;
-}
-d3.scale.linear = function() {
-  return d3_scale_linear([0, 1], [0, 1], d3.interpolate, false);
-};
-
-function d3_scale_linear(domain, range, interpolate, clamp) {
-  var output,
-      input;
-
-  function rescale() {
-    var linear = domain.length == 2 ? d3_scale_bilinear : d3_scale_polylinear,
-        uninterpolate = clamp ? d3_uninterpolateClamp : d3_uninterpolateNumber;
-    output = linear(domain, range, uninterpolate, interpolate);
-    input = linear(range, domain, uninterpolate, d3.interpolate);
-    return scale;
-  }
-
-  function scale(x) {
-    return output(x);
-  }
-
-  // Note: requires range is coercible to number!
-  scale.invert = function(y) {
-    return input(y);
-  };
-
-  scale.domain = function(x) {
-    if (!arguments.length) return domain;
-    domain = x.map(Number);
-    return rescale();
-  };
-
-  scale.range = function(x) {
-    if (!arguments.length) return range;
-    range = x;
-    return rescale();
-  };
-
-  scale.rangeRound = function(x) {
-    return scale.range(x).interpolate(d3.interpolateRound);
-  };
-
-  scale.clamp = function(x) {
-    if (!arguments.length) return clamp;
-    clamp = x;
-    return rescale();
-  };
-
-  scale.interpolate = function(x) {
-    if (!arguments.length) return interpolate;
-    interpolate = x;
-    return rescale();
-  };
-
-  scale.ticks = function(m) {
-    return d3_scale_linearTicks(domain, m);
-  };
-
-  scale.tickFormat = function(m) {
-    return d3_scale_linearTickFormat(domain, m);
-  };
-
-  scale.nice = function() {
-    d3_scale_nice(domain, d3_scale_linearNice);
-    return rescale();
-  };
-
-  scale.copy = function() {
-    return d3_scale_linear(domain, range, interpolate, clamp);
-  };
-
-  return rescale();
-};
-
-function d3_scale_linearRebind(scale, linear) {
-  scale.range = d3.rebind(scale, linear.range);
-  scale.rangeRound = d3.rebind(scale, linear.rangeRound);
-  scale.interpolate = d3.rebind(scale, linear.interpolate);
-  scale.clamp = d3.rebind(scale, linear.clamp);
-  return scale;
-}
-
-function d3_scale_linearNice(dx) {
-  dx = Math.pow(10, Math.round(Math.log(dx) / Math.LN10) - 1);
-  return {
-    floor: function(x) { return Math.floor(x / dx) * dx; },
-    ceil: function(x) { return Math.ceil(x / dx) * dx; }
-  };
-}
-
-// TODO Dates? Ugh.
-function d3_scale_linearTickRange(domain, m) {
-  var extent = d3_scaleExtent(domain),
-      span = extent[1] - extent[0],
-      step = Math.pow(10, Math.floor(Math.log(span / m) / Math.LN10)),
-      err = m / span * step;
-
-  // Filter ticks to get closer to the desired count.
-  if (err <= .15) step *= 10;
-  else if (err <= .35) step *= 5;
-  else if (err <= .75) step *= 2;
-
-  // Round start and stop values to step interval.
-  extent[0] = Math.ceil(extent[0] / step) * step;
-  extent[1] = Math.floor(extent[1] / step) * step + step * .5; // inclusive
-  extent[2] = step;
-  return extent;
-}
-
-function d3_scale_linearTicks(domain, m) {
-  return d3.range.apply(d3, d3_scale_linearTickRange(domain, m));
-}
-
-function d3_scale_linearTickFormat(domain, m) {
-  return d3.format(",." + Math.max(0, -Math.floor(Math.log(d3_scale_linearTickRange(domain, m)[2]) / Math.LN10 + .01)) + "f");
-}
-function d3_scale_bilinear(domain, range, uninterpolate, interpolate) {
-  var u = uninterpolate(domain[0], domain[1]),
-      i = interpolate(range[0], range[1]);
-  return function(x) {
-    return i(u(x));
-  };
-}
-function d3_scale_polylinear(domain, range, uninterpolate, interpolate) {
-  var u = [],
-      i = [],
-      j = 0,
-      n = domain.length;
-
-  while (++j < n) {
-    u.push(uninterpolate(domain[j - 1], domain[j]));
-    i.push(interpolate(range[j - 1], range[j]));
-  }
-
-  return function(x) {
-    var j = d3.bisect(domain, x, 1, domain.length - 1) - 1;
-    return i[j](u[j](x));
-  };
-}
-d3.scale.log = function() {
-  return d3_scale_log(d3.scale.linear(), d3_scale_logp);
-};
-
-function d3_scale_log(linear, log) {
-  var pow = log.pow;
-
-  function scale(x) {
-    return linear(log(x));
-  }
-
-  scale.invert = function(x) {
-    return pow(linear.invert(x));
-  };
-
-  scale.domain = function(x) {
-    if (!arguments.length) return linear.domain().map(pow);
-    log = x[0] < 0 ? d3_scale_logn : d3_scale_logp;
-    pow = log.pow;
-    linear.domain(x.map(log));
-    return scale;
-  };
-
-  scale.nice = function() {
-    linear.domain(d3_scale_nice(linear.domain(), d3_scale_niceDefault));
-    return scale;
-  };
-
-  scale.ticks = function() {
-    var extent = d3_scaleExtent(linear.domain()),
-        ticks = [];
-    if (extent.every(isFinite)) {
-      var i = Math.floor(extent[0]),
-          j = Math.ceil(extent[1]),
-          u = Math.round(pow(extent[0])),
-          v = Math.round(pow(extent[1]));
-      if (log === d3_scale_logn) {
-        ticks.push(pow(i));
-        for (; i++ < j;) for (var k = 9; k > 0; k--) ticks.push(pow(i) * k);
-      } else {
-        for (; i < j; i++) for (var k = 1; k < 10; k++) ticks.push(pow(i) * k);
-        ticks.push(pow(i));
-      }
-      for (i = 0; ticks[i] < u; i++) {} // strip small values
-      for (j = ticks.length; ticks[j - 1] > v; j--) {} // strip big values
-      ticks = ticks.slice(i, j);
-    }
-    return ticks;
-  };
-
-  scale.tickFormat = function(n, format) {
-    if (arguments.length < 2) format = d3_scale_logFormat;
-    if (arguments.length < 1) return format;
-    var k = n / scale.ticks().length,
-        f = log === d3_scale_logn ? (e = -1e-15, Math.floor) : (e = 1e-15, Math.ceil),
-        e;
-    return function(d) {
-      return d / pow(f(log(d) + e)) < k ? format(d) : "";
-    };
-  };
-
-  scale.copy = function() {
-    return d3_scale_log(linear.copy(), log);
-  };
-
-  return d3_scale_linearRebind(scale, linear);
-};
-
-var d3_scale_logFormat = d3.format("e");
-
-function d3_scale_logp(x) {
-  return Math.log(x) / Math.LN10;
-}
-
-function d3_scale_logn(x) {
-  return -Math.log(-x) / Math.LN10;
-}
-
-d3_scale_logp.pow = function(x) {
-  return Math.pow(10, x);
-};
-
-d3_scale_logn.pow = function(x) {
-  return -Math.pow(10, -x);
-};
-d3.scale.pow = function() {
-  return d3_scale_pow(d3.scale.linear(), 1);
-};
-
-function d3_scale_pow(linear, exponent) {
-  var powp = d3_scale_powPow(exponent),
-      powb = d3_scale_powPow(1 / exponent);
-
-  function scale(x) {
-    return linear(powp(x));
-  }
-
-  scale.invert = function(x) {
-    return powb(linear.invert(x));
-  };
-
-  scale.domain = function(x) {
-    if (!arguments.length) return linear.domain().map(powb);
-    linear.domain(x.map(powp));
-    return scale;
-  };
-
-  scale.ticks = function(m) {
-    return d3_scale_linearTicks(scale.domain(), m);
-  };
-
-  scale.tickFormat = function(m) {
-    return d3_scale_linearTickFormat(scale.domain(), m);
-  };
-
-  scale.nice = function() {
-    return scale.domain(d3_scale_nice(scale.domain(), d3_scale_linearNice));
-  };
-
-  scale.exponent = function(x) {
-    if (!arguments.length) return exponent;
-    var domain = scale.domain();
-    powp = d3_scale_powPow(exponent = x);
-    powb = d3_scale_powPow(1 / exponent);
-    return scale.domain(domain);
-  };
-
-  scale.copy = function() {
-    return d3_scale_pow(linear.copy(), exponent);
-  };
-
-  return d3_scale_linearRebind(scale, linear);
-};
-
-function d3_scale_powPow(e) {
-  return function(x) {
-    return x < 0 ? -Math.pow(-x, e) : Math.pow(x, e);
-  };
-}
-d3.scale.sqrt = function() {
-  return d3.scale.pow().exponent(.5);
-};
-d3.scale.ordinal = function() {
-  return d3_scale_ordinal([], {t: "range", x: []});
-};
-
-function d3_scale_ordinal(domain, ranger) {
-  var index,
-      range,
-      rangeBand;
-
-  function scale(x) {
-    return range[((index[x] || (index[x] = domain.push(x))) - 1) % range.length];
-  }
-
-  scale.domain = function(x) {
-    if (!arguments.length) return domain;
-    domain = [];
-    index = {};
-    var i = -1, n = x.length, xi;
-    while (++i < n) if (!index[xi = x[i]]) index[xi] = domain.push(xi);
-    return scale[ranger.t](ranger.x, ranger.p);
-  };
-
-  scale.range = function(x) {
-    if (!arguments.length) return range;
-    range = x;
-    rangeBand = 0;
-    ranger = {t: "range", x: x};
-    return scale;
-  };
-
-  scale.rangePoints = function(x, padding) {
-    if (arguments.length < 2) padding = 0;
-    var start = x[0],
-        stop = x[1],
-        step = (stop - start) / (domain.length - 1 + padding);
-    range = domain.length < 2 ? [(start + stop) / 2] : d3.range(start + step * padding / 2, stop + step / 2, step);
-    rangeBand = 0;
-    ranger = {t: "rangePoints", x: x, p: padding};
-    return scale;
-  };
-
-  scale.rangeBands = function(x, padding) {
-    if (arguments.length < 2) padding = 0;
-    var start = x[0],
-        stop = x[1],
-        step = (stop - start) / (domain.length + padding);
-    range = d3.range(start + step * padding, stop, step);
-    rangeBand = step * (1 - padding);
-    ranger = {t: "rangeBands", x: x, p: padding};
-    return scale;
-  };
-
-  scale.rangeRoundBands = function(x, padding) {
-    if (arguments.length < 2) padding = 0;
-    var start = x[0],
-        stop = x[1],
-        step = Math.floor((stop - start) / (domain.length + padding)),
-        err = stop - start - (domain.length - padding) * step;
-    range = d3.range(start + Math.round(err / 2), stop, step);
-    rangeBand = Math.round(step * (1 - padding));
-    ranger = {t: "rangeRoundBands", x: x, p: padding};
-    return scale;
-  };
-
-  scale.rangeBand = function() {
-    return rangeBand;
-  };
-
-  scale.copy = function() {
-    return d3_scale_ordinal(domain, ranger);
-  };
-
-  return scale.domain(domain);
-};
-/*
- * This product includes color specifications and designs developed by Cynthia
- * Brewer (http://colorbrewer.org/). See lib/colorbrewer for more information.
- */
-
-d3.scale.category10 = function() {
-  return d3.scale.ordinal().range(d3_category10);
-};
-
-d3.scale.category20 = function() {
-  return d3.scale.ordinal().range(d3_category20);
-};
-
-d3.scale.category20b = function() {
-  return d3.scale.ordinal().range(d3_category20b);
-};
-
-d3.scale.category20c = function() {
-  return d3.scale.ordinal().range(d3_category20c);
-};
-
-var d3_category10 = [
-  "#1f77b4", "#ff7f0e", "#2ca02c", "#d62728", "#9467bd",
-  "#8c564b", "#e377c2", "#7f7f7f", "#bcbd22", "#17becf"
-];
-
-var d3_category20 = [
-  "#1f77b4", "#aec7e8",
-  "#ff7f0e", "#ffbb78",
-  "#2ca02c", "#98df8a",
-  "#d62728", "#ff9896",
-  "#9467bd", "#c5b0d5",
-  "#8c564b", "#c49c94",
-  "#e377c2", "#f7b6d2",
-  "#7f7f7f", "#c7c7c7",
-  "#bcbd22", "#dbdb8d",
-  "#17becf", "#9edae5"
-];
-
-var d3_category20b = [
-  "#393b79", "#5254a3", "#6b6ecf", "#9c9ede",
-  "#637939", "#8ca252", "#b5cf6b", "#cedb9c",
-  "#8c6d31", "#bd9e39", "#e7ba52", "#e7cb94",
-  "#843c39", "#ad494a", "#d6616b", "#e7969c",
-  "#7b4173", "#a55194", "#ce6dbd", "#de9ed6"
-];
-
-var d3_category20c = [
-  "#3182bd", "#6baed6", "#9ecae1", "#c6dbef",
-  "#e6550d", "#fd8d3c", "#fdae6b", "#fdd0a2",
-  "#31a354", "#74c476", "#a1d99b", "#c7e9c0",
-  "#756bb1", "#9e9ac8", "#bcbddc", "#dadaeb",
-  "#636363", "#969696", "#bdbdbd", "#d9d9d9"
-];
-d3.scale.quantile = function() {
-  return d3_scale_quantile([], []);
-};
-
-function d3_scale_quantile(domain, range) {
-  var thresholds;
-
-  function rescale() {
-    var k = 0,
-        n = domain.length,
-        q = range.length;
-    thresholds = [];
-    while (++k < q) thresholds[k - 1] = d3.quantile(domain, k / q);
-    return scale;
-  }
-
-  function scale(x) {
-    if (isNaN(x = +x)) return NaN;
-    return range[d3.bisect(thresholds, x)];
-  }
-
-  scale.domain = function(x) {
-    if (!arguments.length) return domain;
-    domain = x.filter(function(d) { return !isNaN(d); }).sort(d3.ascending);
-    return rescale();
-  };
-
-  scale.range = function(x) {
-    if (!arguments.length) return range;
-    range = x;
-    return rescale();
-  };
-
-  scale.quantiles = function() {
-    return thresholds;
-  };
-
-  scale.copy = function() {
-    return d3_scale_quantile(domain, range); // copy on write!
-  };
-
-  return rescale();
-};
-d3.scale.quantize = function() {
-  return d3_scale_quantize(0, 1, [0, 1]);
-};
-
-function d3_scale_quantize(x0, x1, range) {
-  var kx, i;
-
-  function scale(x) {
-    return range[Math.max(0, Math.min(i, Math.floor(kx * (x - x0))))];
-  }
-
-  function rescale() {
-    kx = range.length / (x1 - x0);
-    i = range.length - 1;
-    return scale;
-  }
-
-  scale.domain = function(x) {
-    if (!arguments.length) return [x0, x1];
-    x0 = +x[0];
-    x1 = +x[x.length - 1];
-    return rescale();
-  };
-
-  scale.range = function(x) {
-    if (!arguments.length) return range;
-    range = x;
-    return rescale();
-  };
-
-  scale.copy = function() {
-    return d3_scale_quantize(x0, x1, range); // copy on write
-  };
-
-  return rescale();
-};
-d3.svg = {};
-d3.svg.arc = function() {
-  var innerRadius = d3_svg_arcInnerRadius,
-      outerRadius = d3_svg_arcOuterRadius,
-      startAngle = d3_svg_arcStartAngle,
-      endAngle = d3_svg_arcEndAngle;
-
-  function arc() {
-    var r0 = innerRadius.apply(this, arguments),
-        r1 = outerRadius.apply(this, arguments),
-        a0 = startAngle.apply(this, arguments) + d3_svg_arcOffset,
-        a1 = endAngle.apply(this, arguments) + d3_svg_arcOffset,
-        da = (a1 < a0 && (da = a0, a0 = a1, a1 = da), a1 - a0),
-        df = da < Math.PI ? "0" : "1",
-        c0 = Math.cos(a0),
-        s0 = Math.sin(a0),
-        c1 = Math.cos(a1),
-        s1 = Math.sin(a1);
-    return da >= d3_svg_arcMax
-      ? (r0
-      ? "M0," + r1
-      + "A" + r1 + "," + r1 + " 0 1,1 0," + (-r1)
-      + "A" + r1 + "," + r1 + " 0 1,1 0," + r1
-      + "M0," + r0
-      + "A" + r0 + "," + r0 + " 0 1,0 0," + (-r0)
-      + "A" + r0 + "," + r0 + " 0 1,0 0," + r0
-      + "Z"
-      : "M0," + r1
-      + "A" + r1 + "," + r1 + " 0 1,1 0," + (-r1)
-      + "A" + r1 + "," + r1 + " 0 1,1 0," + r1
-      + "Z")
-      : (r0
-      ? "M" + r1 * c0 + "," + r1 * s0
-      + "A" + r1 + "," + r1 + " 0 " + df + ",1 " + r1 * c1 + "," + r1 * s1
-      + "L" + r0 * c1 + "," + r0 * s1
-      + "A" + r0 + "," + r0 + " 0 " + df + ",0 " + r0 * c0 + "," + r0 * s0
-      + "Z"
-      : "M" + r1 * c0 + "," + r1 * s0
-      + "A" + r1 + "," + r1 + " 0 " + df + ",1 " + r1 * c1 + "," + r1 * s1
-      + "L0,0"
-      + "Z");
-  }
-
-  arc.innerRadius = function(v) {
-    if (!arguments.length) return innerRadius;
-    innerRadius = d3.functor(v);
-    return arc;
-  };
-
-  arc.outerRadius = function(v) {
-    if (!arguments.length) return outerRadius;
-    outerRadius = d3.functor(v);
-    return arc;
-  };
-
-  arc.startAngle = function(v) {
-    if (!arguments.length) return startAngle;
-    startAngle = d3.functor(v);
-    return arc;
-  };
-
-  arc.endAngle = function(v) {
-    if (!arguments.length) return endAngle;
-    endAngle = d3.functor(v);
-    return arc;
-  };
-
-  arc.centroid = function() {
-    var r = (innerRadius.apply(this, arguments)
-        + outerRadius.apply(this, arguments)) / 2,
-        a = (startAngle.apply(this, arguments)
-        + endAngle.apply(this, arguments)) / 2 + d3_svg_arcOffset;
-    return [Math.cos(a) * r, Math.sin(a) * r];
-  };
-
-  return arc;
-};
-
-var d3_svg_arcOffset = -Math.PI / 2,
-    d3_svg_arcMax = 2 * Math.PI - 1e-6;
-
-function d3_svg_arcInnerRadius(d) {
-  return d.innerRadius;
-}
-
-function d3_svg_arcOuterRadius(d) {
-  return d.outerRadius;
-}
-
-function d3_svg_arcStartAngle(d) {
-  return d.startAngle;
-}
-
-function d3_svg_arcEndAngle(d) {
-  return d.endAngle;
-}
-function d3_svg_line(projection) {
-  var x = d3_svg_lineX,
-      y = d3_svg_lineY,
-      interpolate = "linear",
-      interpolator = d3_svg_lineInterpolators[interpolate],
-      tension = .7;
-
-  function line(d) {
-    return d.length < 1 ? null : "M" + interpolator(projection(d3_svg_linePoints(this, d, x, y)), tension);
-  }
-
-  line.x = function(v) {
-    if (!arguments.length) return x;
-    x = v;
-    return line;
-  };
-
-  line.y = function(v) {
-    if (!arguments.length) return y;
-    y = v;
-    return line;
-  };
-
-  line.interpolate = function(v) {
-    if (!arguments.length) return interpolate;
-    interpolator = d3_svg_lineInterpolators[interpolate = v];
-    return line;
-  };
-
-  line.tension = function(v) {
-    if (!arguments.length) return tension;
-    tension = v;
-    return line;
-  };
-
-  return line;
-}
-
-d3.svg.line = function() {
-  return d3_svg_line(Object);
-};
-
-// Converts the specified array of data into an array of points
-// (x-y tuples), by evaluating the specified `x` and `y` functions on each
-// data point. The `this` context of the evaluated functions is the specified
-// "self" object; each function is passed the current datum and index.
-function d3_svg_linePoints(self, d, x, y) {
-  var points = [],
-      i = -1,
-      n = d.length,
-      fx = typeof x === "function",
-      fy = typeof y === "function",
-      value;
-  if (fx && fy) {
-    while (++i < n) points.push([
-      x.call(self, value = d[i], i),
-      y.call(self, value, i)
-    ]);
-  } else if (fx) {
-    while (++i < n) points.push([x.call(self, d[i], i), y]);
-  } else if (fy) {
-    while (++i < n) points.push([x, y.call(self, d[i], i)]);
-  } else {
-    while (++i < n) points.push([x, y]);
-  }
-  return points;
-}
-
-// The default `x` property, which references d[0].
-function d3_svg_lineX(d) {
-  return d[0];
-}
-
-// The default `y` property, which references d[1].
-function d3_svg_lineY(d) {
-  return d[1];
-}
-
-// The various interpolators supported by the `line` class.
-var d3_svg_lineInterpolators = {
-  "linear": d3_svg_lineLinear,
-  "step-before": d3_svg_lineStepBefore,
-  "step-after": d3_svg_lineStepAfter,
-  "basis": d3_svg_lineBasis,
-  "basis-open": d3_svg_lineBasisOpen,
-  "basis-closed": d3_svg_lineBasisClosed,
-  "bundle": d3_svg_lineBundle,
-  "cardinal": d3_svg_lineCardinal,
-  "cardinal-open": d3_svg_lineCardinalOpen,
-  "cardinal-closed": d3_svg_lineCardinalClosed,
-  "monotone": d3_svg_lineMonotone
-};
-
-// Linear interpolation; generates "L" commands.
-function d3_svg_lineLinear(points) {
-  var i = 0,
-      n = points.length,
-      p = points[0],
-      path = [p[0], ",", p[1]];
-  while (++i < n) path.push("L", (p = points[i])[0], ",", p[1]);
-  return path.join("");
-}
-
-// Step interpolation; generates "H" and "V" commands.
-function d3_svg_lineStepBefore(points) {
-  var i = 0,
-      n = points.length,
-      p = points[0],
-      path = [p[0], ",", p[1]];
-  while (++i < n) path.push("V", (p = points[i])[1], "H", p[0]);
-  return path.join("");
-}
-
-// Step interpolation; generates "H" and "V" commands.
-function d3_svg_lineStepAfter(points) {
-  var i = 0,
-      n = points.length,
-      p = points[0],
-      path = [p[0], ",", p[1]];
-  while (++i < n) path.push("H", (p = points[i])[0], "V", p[1]);
-  return path.join("");
-}
-
-// Open cardinal spline interpolation; generates "C" commands.
-function d3_svg_lineCardinalOpen(points, tension) {
-  return points.length < 4
-      ? d3_svg_lineLinear(points)
-      : points[1] + d3_svg_lineHermite(points.slice(1, points.length - 1),
-        d3_svg_lineCardinalTangents(points, tension));
-}
-
-// Closed cardinal spline interpolation; generates "C" commands.
-function d3_svg_lineCardinalClosed(points, tension) {
-  return points.length < 3
-      ? d3_svg_lineLinear(points)
-      : points[0] + d3_svg_lineHermite((points.push(points[0]), points),
-        d3_svg_lineCardinalTangents([points[points.length - 2]]
-        .concat(points, [points[1]]), tension));
-}
-
-// Cardinal spline interpolation; generates "C" commands.
-function d3_svg_lineCardinal(points, tension, closed) {
-  return points.length < 3
-      ? d3_svg_lineLinear(points)
-      : points[0] + d3_svg_lineHermite(points,
-        d3_svg_lineCardinalTangents(points, tension));
-}
-
-// Hermite spline construction; generates "C" commands.
-function d3_svg_lineHermite(points, tangents) {
-  if (tangents.length < 1
-      || (points.length != tangents.length
-      && points.length != tangents.length + 2)) {
-    return d3_svg_lineLinear(points);
-  }
-
-  var quad = points.length != tangents.length,
-      path = "",
-      p0 = points[0],
-      p = points[1],
-      t0 = tangents[0],
-      t = t0,
-      pi = 1;
-
-  if (quad) {
-    path += "Q" + (p[0] - t0[0] * 2 / 3) + "," + (p[1] - t0[1] * 2 / 3)
-        + "," + p[0] + "," + p[1];
-    p0 = points[1];
-    pi = 2;
-  }
-
-  if (tangents.length > 1) {
-    t = tangents[1];
-    p = points[pi];
-    pi++;
-    path += "C" + (p0[0] + t0[0]) + "," + (p0[1] + t0[1])
-        + "," + (p[0] - t[0]) + "," + (p[1] - t[1])
-        + "," + p[0] + "," + p[1];
-    for (var i = 2; i < tangents.length; i++, pi++) {
-      p = points[pi];
-      t = tangents[i];
-      path += "S" + (p[0] - t[0]) + "," + (p[1] - t[1])
-          + "," + p[0] + "," + p[1];
-    }
-  }
-
-  if (quad) {
-    var lp = points[pi];
-    path += "Q" + (p[0] + t[0] * 2 / 3) + "," + (p[1] + t[1] * 2 / 3)
-        + "," + lp[0] + "," + lp[1];
-  }
-
-  return path;
-}
-
-// Generates tangents for a cardinal spline.
-function d3_svg_lineCardinalTangents(points, tension) {
-  var tangents = [],
-      a = (1 - tension) / 2,
-      p0,
-      p1 = points[0],
-      p2 = points[1],
-      i = 1,
-      n = points.length;
-  while (++i < n) {
-    p0 = p1;
-    p1 = p2;
-    p2 = points[i];
-    tangents.push([a * (p2[0] - p0[0]), a * (p2[1] - p0[1])]);
-  }
-  return tangents;
-}
-
-// B-spline interpolation; generates "C" commands.
-function d3_svg_lineBasis(points) {
-  if (points.length < 3) return d3_svg_lineLinear(points);
-  var i = 1,
-      n = points.length,
-      pi = points[0],
-      x0 = pi[0],
-      y0 = pi[1],
-      px = [x0, x0, x0, (pi = points[1])[0]],
-      py = [y0, y0, y0, pi[1]],
-      path = [x0, ",", y0];
-  d3_svg_lineBasisBezier(path, px, py);
-  while (++i < n) {
-    pi = points[i];
-    px.shift(); px.push(pi[0]);
-    py.shift(); py.push(pi[1]);
-    d3_svg_lineBasisBezier(path, px, py);
-  }
-  i = -1;
-  while (++i < 2) {
-    px.shift(); px.push(pi[0]);
-    py.shift(); py.push(pi[1]);
-    d3_svg_lineBasisBezier(path, px, py);
-  }
-  return path.join("");
-}
-
-// Open B-spline interpolation; generates "C" commands.
-function d3_svg_lineBasisOpen(points) {
-  if (points.length < 4) return d3_svg_lineLinear(points);
-  var path = [],
-      i = -1,
-      n = points.length,
-      pi,
-      px = [0],
-      py = [0];
-  while (++i < 3) {
-    pi = points[i];
-    px.push(pi[0]);
-    py.push(pi[1]);
-  }
-  path.push(d3_svg_lineDot4(d3_svg_lineBasisBezier3, px)
-    + "," + d3_svg_lineDot4(d3_svg_lineBasisBezier3, py));
-  --i; while (++i < n) {
-    pi = points[i];
-    px.shift(); px.push(pi[0]);
-    py.shift(); py.push(pi[1]);
-    d3_svg_lineBasisBezier(path, px, py);
-  }
-  return path.join("");
-}
-
-// Closed B-spline interpolation; generates "C" commands.
-function d3_svg_lineBasisClosed(points) {
-  var path,
-      i = -1,
-      n = points.length,
-      m = n + 4,
-      pi,
-      px = [],
-      py = [];
-  while (++i < 4) {
-    pi = points[i % n];
-    px.push(pi[0]);
-    py.push(pi[1]);
-  }
-  path = [
-    d3_svg_lineDot4(d3_svg_lineBasisBezier3, px), ",",
-    d3_svg_lineDot4(d3_svg_lineBasisBezier3, py)
-  ];
-  --i; while (++i < m) {
-    pi = points[i % n];
-    px.shift(); px.push(pi[0]);
-    py.shift(); py.push(pi[1]);
-    d3_svg_lineBasisBezier(path, px, py);
-  }
-  return path.join("");
-}
-
-function d3_svg_lineBundle(points, tension) {
-  var n = points.length - 1,
-      x0 = points[0][0],
-      y0 = points[0][1],
-      dx = points[n][0] - x0,
-      dy = points[n][1] - y0,
-      i = -1,
-      p,
-      t;
-  while (++i <= n) {
-    p = points[i];
-    t = i / n;
-    p[0] = tension * p[0] + (1 - tension) * (x0 + t * dx);
-    p[1] = tension * p[1] + (1 - tension) * (y0 + t * dy);
-  }
-  return d3_svg_lineBasis(points);
-}
-
-// Returns the dot product of the given four-element vectors.
-function d3_svg_lineDot4(a, b) {
-  return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];
-}
-
-// Matrix to transform basis (b-spline) control points to bezier
-// control points. Derived from FvD 11.2.8.
-var d3_svg_lineBasisBezier1 = [0, 2/3, 1/3, 0],
-    d3_svg_lineBasisBezier2 = [0, 1/3, 2/3, 0],
-    d3_svg_lineBasisBezier3 = [0, 1/6, 2/3, 1/6];
-
-// Pushes a "C" Bézier curve onto the specified path array, given the
-// two specified four-element arrays which define the control points.
-function d3_svg_lineBasisBezier(path, x, y) {
-  path.push(
-      "C", d3_svg_lineDot4(d3_svg_lineBasisBezier1, x),
-      ",", d3_svg_lineDot4(d3_svg_lineBasisBezier1, y),
-      ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, x),
-      ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, y),
-      ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, x),
-      ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, y));
-}
-
-// Computes the slope from points p0 to p1.
-function d3_svg_lineSlope(p0, p1) {
-  return (p1[1] - p0[1]) / (p1[0] - p0[0]);
-}
-
-// Compute three-point differences for the given points.
-// http://en.wikipedia.org/wiki/Cubic_Hermite_spline#Finite_difference
-function d3_svg_lineFiniteDifferences(points) {
-  var i = 0,
-      j = points.length - 1,
-      m = [],
-      p0 = points[0],
-      p1 = points[1],
-      d = m[0] = d3_svg_lineSlope(p0, p1);
-  while (++i < j) {
-    m[i] = d + (d = d3_svg_lineSlope(p0 = p1, p1 = points[i + 1]));
-  }
-  m[i] = d;
-  return m;
-}
-
-// Interpolates the given points using Fritsch-Carlson Monotone cubic Hermite
-// interpolation. Returns an array of tangent vectors. For details, see
-// http://en.wikipedia.org/wiki/Monotone_cubic_interpolation
-function d3_svg_lineMonotoneTangents(points) {
-  var tangents = [],
-      d,
-      a,
-      b,
-      s,
-      m = d3_svg_lineFiniteDifferences(points),
-      i = -1,
-      j = points.length - 1;
-
-  // The first two steps are done by computing finite-differences:
-  // 1. Compute the slopes of the secant lines between successive points.
-  // 2. Initialize the tangents at every point as the average of the secants.
-
-  // Then, for each segment…
-  while (++i < j) {
-    d = d3_svg_lineSlope(points[i], points[i + 1]);
-
-    // 3. If two successive yk = y{k + 1} are equal (i.e., d is zero), then set
-    // mk = m{k + 1} = 0 as the spline connecting these points must be flat to
-    // preserve monotonicity. Ignore step 4 and 5 for those k.
-
-    if (Math.abs(d) < 1e-6) {
-      m[i] = m[i + 1] = 0;
-    } else {
-      // 4. Let ak = mk / dk and bk = m{k + 1} / dk.
-      a = m[i] / d;
-      b = m[i + 1] / d;
-
-      // 5. Prevent overshoot and ensure monotonicity by restricting the
-      // magnitude of vector <ak, bk> to a circle of radius 3.
-      s = a * a + b * b;
-      if (s > 9) {
-        s = d * 3 / Math.sqrt(s);
-        m[i] = s * a;
-        m[i + 1] = s * b;
-      }
-    }
-  }
-
-  // Compute the normalized tangent vector from the slopes. Note that if x is
-  // not monotonic, it's possible that the slope will be infinite, so we protect
-  // against NaN by setting the coordinate to zero.
-  i = -1; while (++i <= j) {
-    s = (points[Math.min(j, i + 1)][0] - points[Math.max(0, i - 1)][0])
-      / (6 * (1 + m[i] * m[i]));
-    tangents.push([s || 0, m[i] * s || 0]);
-  }
-
-  return tangents;
-}
-
-function d3_svg_lineMonotone(points) {
-  return points.length < 3
-      ? d3_svg_lineLinear(points)
-      : points[0] +
-        d3_svg_lineHermite(points, d3_svg_lineMonotoneTangents(points));
-}
-d3.svg.line.radial = function() {
-  var line = d3_svg_line(d3_svg_lineRadial);
-  line.radius = line.x, delete line.x;
-  line.angle = line.y, delete line.y;
-  return line;
-};
-
-function d3_svg_lineRadial(points) {
-  var point,
-      i = -1,
-      n = points.length,
-      r,
-      a;
-  while (++i < n) {
-    point = points[i];
-    r = point[0];
-    a = point[1] + d3_svg_arcOffset;
-    point[0] = r * Math.cos(a);
-    point[1] = r * Math.sin(a);
-  }
-  return points;
-}
-function d3_svg_area(projection) {
-  var x0 = d3_svg_lineX,
-      x1 = d3_svg_lineX,
-      y0 = 0,
-      y1 = d3_svg_lineY,
-      interpolate = "linear",
-      interpolator = d3_svg_lineInterpolators[interpolate],
-      tension = .7;
-
-  function area(d) {
-    if (d.length < 1) return null;
-    var points0 = d3_svg_linePoints(this, d, x0, y0),
-        points1 = d3_svg_linePoints(this, d, x0 === x1 ? d3_svg_areaX(points0) : x1, y0 === y1 ? d3_svg_areaY(points0) : y1);
-    return "M" + interpolator(projection(points1), tension)
-         + "L" + interpolator(projection(points0.reverse()), tension)
-         + "Z";
-  }
-
-  area.x = function(x) {
-    if (!arguments.length) return x1;
-    x0 = x1 = x;
-    return area;
-  };
-
-  area.x0 = function(x) {
-    if (!arguments.length) return x0;
-    x0 = x;
-    return area;
-  };
-
-  area.x1 = function(x) {
-    if (!arguments.length) return x1;
-    x1 = x;
-    return area;
-  };
-
-  area.y = function(y) {
-    if (!arguments.length) return y1;
-    y0 = y1 = y;
-    return area;
-  };
-
-  area.y0 = function(y) {
-    if (!arguments.length) return y0;
-    y0 = y;
-    return area;
-  };
-
-  area.y1 = function(y) {
-    if (!arguments.length) return y1;
-    y1 = y;
-    return area;
-  };
-
-  area.interpolate = function(x) {
-    if (!arguments.length) return interpolate;
-    interpolator = d3_svg_lineInterpolators[interpolate = x];
-    return area;
-  };
-
-  area.tension = function(x) {
-    if (!arguments.length) return tension;
-    tension = x;
-    return area;
-  };
-
-  return area;
-}
-
-d3.svg.area = function() {
-  return d3_svg_area(Object);
-};
-
-function d3_svg_areaX(points) {
-  return function(d, i) {
-    return points[i][0];
-  };
-}
-
-function d3_svg_areaY(points) {
-  return function(d, i) {
-    return points[i][1];
-  };
-}
-d3.svg.area.radial = function() {
-  var area = d3_svg_area(d3_svg_lineRadial);
-  area.radius = area.x, delete area.x;
-  area.innerRadius = area.x0, delete area.x0;
-  area.outerRadius = area.x1, delete area.x1;
-  area.angle = area.y, delete area.y;
-  area.startAngle = area.y0, delete area.y0;
-  area.endAngle = area.y1, delete area.y1;
-  return area;
-};
-d3.svg.chord = function() {
-  var source = d3_svg_chordSource,
-      target = d3_svg_chordTarget,
-      radius = d3_svg_chordRadius,
-      startAngle = d3_svg_arcStartAngle,
-      endAngle = d3_svg_arcEndAngle;
-
-  // TODO Allow control point to be customized.
-
-  function chord(d, i) {
-    var s = subgroup(this, source, d, i),
-        t = subgroup(this, target, d, i);
-    return "M" + s.p0
-      + arc(s.r, s.p1) + (equals(s, t)
-      ? curve(s.r, s.p1, s.r, s.p0)
-      : curve(s.r, s.p1, t.r, t.p0)
-      + arc(t.r, t.p1)
-      + curve(t.r, t.p1, s.r, s.p0))
-      + "Z";
-  }
-
-  function subgroup(self, f, d, i) {
-    var subgroup = f.call(self, d, i),
-        r = radius.call(self, subgroup, i),
-        a0 = startAngle.call(self, subgroup, i) + d3_svg_arcOffset,
-        a1 = endAngle.call(self, subgroup, i) + d3_svg_arcOffset;
-    return {
-      r: r,
-      a0: a0,
-      a1: a1,
-      p0: [r * Math.cos(a0), r * Math.sin(a0)],
-      p1: [r * Math.cos(a1), r * Math.sin(a1)]
-    };
-  }
-
-  function equals(a, b) {
-    return a.a0 == b.a0 && a.a1 == b.a1;
-  }
-
-  function arc(r, p) {
-    return "A" + r + "," + r + " 0 0,1 " + p;
-  }
-
-  function curve(r0, p0, r1, p1) {
-    return "Q 0,0 " + p1;
-  }
-
-  chord.radius = function(v) {
-    if (!arguments.length) return radius;
-    radius = d3.functor(v);
-    return chord;
-  };
-
-  chord.source = function(v) {
-    if (!arguments.length) return source;
-    source = d3.functor(v);
-    return chord;
-  };
-
-  chord.target = function(v) {
-    if (!arguments.length) return target;
-    target = d3.functor(v);
-    return chord;
-  };
-
-  chord.startAngle = function(v) {
-    if (!arguments.length) return startAngle;
-    startAngle = d3.functor(v);
-    return chord;
-  };
-
-  chord.endAngle = function(v) {
-    if (!arguments.length) return endAngle;
-    endAngle = d3.functor(v);
-    return chord;
-  };
-
-  return chord;
-};
-
-function d3_svg_chordSource(d) {
-  return d.source;
-}
-
-function d3_svg_chordTarget(d) {
-  return d.target;
-}
-
-function d3_svg_chordRadius(d) {
-  return d.radius;
-}
-
-function d3_svg_chordStartAngle(d) {
-  return d.startAngle;
-}
-
-function d3_svg_chordEndAngle(d) {
-  return d.endAngle;
-}
-d3.svg.diagonal = function() {
-  var source = d3_svg_chordSource,
-      target = d3_svg_chordTarget,
-      projection = d3_svg_diagonalProjection;
-
-  function diagonal(d, i) {
-    var p0 = source.call(this, d, i),
-        p3 = target.call(this, d, i),
-        m = (p0.y + p3.y) / 2,
-        p = [p0, {x: p0.x, y: m}, {x: p3.x, y: m}, p3];
-    p = p.map(projection);
-    return "M" + p[0] + "C" + p[1] + " " + p[2] + " " + p[3];
-  }
-
-  diagonal.source = function(x) {
-    if (!arguments.length) return source;
-    source = d3.functor(x);
-    return diagonal;
-  };
-
-  diagonal.target = function(x) {
-    if (!arguments.length) return target;
-    target = d3.functor(x);
-    return diagonal;
-  };
-
-  diagonal.projection = function(x) {
-    if (!arguments.length) return projection;
-    projection = x;
-    return diagonal;
-  };
-
-  return diagonal;
-};
-
-function d3_svg_diagonalProjection(d) {
-  return [d.x, d.y];
-}
-d3.svg.diagonal.radial = function() {
-  var diagonal = d3.svg.diagonal(),
-      projection = d3_svg_diagonalProjection,
-      projection_ = diagonal.projection;
-
-  diagonal.projection = function(x) {
-    return arguments.length
-        ? projection_(d3_svg_diagonalRadialProjection(projection = x))
-        : projection;
-  };
-
-  return diagonal;
-};
-
-function d3_svg_diagonalRadialProjection(projection) {
-  return function() {
-    var d = projection.apply(this, arguments),
-        r = d[0],
-        a = d[1] + d3_svg_arcOffset;
-    return [r * Math.cos(a), r * Math.sin(a)];
-  };
-}
-d3.svg.mouse = function(container) {
-  return d3_svg_mousePoint(container, d3.event);
-};
-
-// https://bugs.webkit.org/show_bug.cgi?id=44083
-var d3_mouse_bug44083 = /WebKit/.test(navigator.userAgent) ? -1 : 0;
-
-function d3_svg_mousePoint(container, e) {
-  var point = (container.ownerSVGElement || container).createSVGPoint();
-  if ((d3_mouse_bug44083 < 0) && (window.scrollX || window.scrollY)) {
-    var svg = d3.select(document.body)
-      .append("svg:svg")
-        .style("position", "absolute")
-        .style("top", 0)
-        .style("left", 0);
-    var ctm = svg[0][0].getScreenCTM();
-    d3_mouse_bug44083 = !(ctm.f || ctm.e);
-    svg.remove();
-  }
-  if (d3_mouse_bug44083) {
-    point.x = e.pageX;
-    point.y = e.pageY;
-  } else {
-    point.x = e.clientX;
-    point.y = e.clientY;
-  }
-  point = point.matrixTransform(container.getScreenCTM().inverse());
-  return [point.x, point.y];
-};
-d3.svg.touches = function(container) {
-  var touches = d3.event.touches;
-  return touches ? d3_array(touches).map(function(touch) {
-    var point = d3_svg_mousePoint(container, touch);
-    point.identifier = touch.identifier;
-    return point;
-  }) : [];
-};
-d3.svg.symbol = function() {
-  var type = d3_svg_symbolType,
-      size = d3_svg_symbolSize;
-
-  function symbol(d, i) {
-    return (d3_svg_symbols[type.call(this, d, i)]
-        || d3_svg_symbols.circle)
-        (size.call(this, d, i));
-  }
-
-  symbol.type = function(x) {
-    if (!arguments.length) return type;
-    type = d3.functor(x);
-    return symbol;
-  };
-
-  // size of symbol in square pixels
-  symbol.size = function(x) {
-    if (!arguments.length) return size;
-    size = d3.functor(x);
-    return symbol;
-  };
-
-  return symbol;
-};
-
-function d3_svg_symbolSize() {
-  return 64;
-}
-
-function d3_svg_symbolType() {
-  return "circle";
-}
-
-// TODO cross-diagonal?
-var d3_svg_symbols = {
-  "circle": function(size) {
-    var r = Math.sqrt(size / Math.PI);
-    return "M0," + r
-        + "A" + r + "," + r + " 0 1,1 0," + (-r)
-        + "A" + r + "," + r + " 0 1,1 0," + r
-        + "Z";
-  },
-  "cross": function(size) {
-    var r = Math.sqrt(size / 5) / 2;
-    return "M" + -3 * r + "," + -r
-        + "H" + -r
-        + "V" + -3 * r
-        + "H" + r
-        + "V" + -r
-        + "H" + 3 * r
-        + "V" + r
-        + "H" + r
-        + "V" + 3 * r
-        + "H" + -r
-        + "V" + r
-        + "H" + -3 * r
-        + "Z";
-  },
-  "diamond": function(size) {
-    var ry = Math.sqrt(size / (2 * d3_svg_symbolTan30)),
-        rx = ry * d3_svg_symbolTan30;
-    return "M0," + -ry
-        + "L" + rx + ",0"
-        + " 0," + ry
-        + " " + -rx + ",0"
-        + "Z";
-  },
-  "square": function(size) {
-    var r = Math.sqrt(size) / 2;
-    return "M" + -r + "," + -r
-        + "L" + r + "," + -r
-        + " " + r + "," + r
-        + " " + -r + "," + r
-        + "Z";
-  },
-  "triangle-down": function(size) {
-    var rx = Math.sqrt(size / d3_svg_symbolSqrt3),
-        ry = rx * d3_svg_symbolSqrt3 / 2;
-    return "M0," + ry
-        + "L" + rx +"," + -ry
-        + " " + -rx + "," + -ry
-        + "Z";
-  },
-  "triangle-up": function(size) {
-    var rx = Math.sqrt(size / d3_svg_symbolSqrt3),
-        ry = rx * d3_svg_symbolSqrt3 / 2;
-    return "M0," + -ry
-        + "L" + rx +"," + ry
-        + " " + -rx + "," + ry
-        + "Z";
-  }
-};
-
-d3.svg.symbolTypes = d3.keys(d3_svg_symbols);
-
-var d3_svg_symbolSqrt3 = Math.sqrt(3),
-    d3_svg_symbolTan30 = Math.tan(30 * Math.PI / 180);
-d3.svg.axis = function() {
-  var scale = d3.scale.linear(),
-      orient = "bottom",
-      tickMajorSize = 6,
-      tickMinorSize = 6,
-      tickEndSize = 6,
-      tickPadding = 3,
-      tickArguments_ = [10],
-      tickFormat_,
-      tickSubdivide = 0;
-
-  function axis(selection) {
-    selection.each(function(d, i, j) {
-      var g = d3.select(this);
-
-      // Ticks.
-      var ticks = scale.ticks.apply(scale, tickArguments_),
-          tickFormat = tickFormat_ == null ? scale.tickFormat.apply(scale, tickArguments_) : tickFormat_;
-
-      // Minor ticks.
-      var subticks = d3_svg_axisSubdivide(scale, ticks, tickSubdivide),
-          subtick = g.selectAll(".minor").data(subticks, String),
-          subtickEnter = subtick.enter().insert("svg:line", "g").attr("class", "tick minor").style("opacity", 1e-6),
-          subtickExit = transition(subtick.exit()).style("opacity", 1e-6).remove(),
-          subtickUpdate = transition(subtick).style("opacity", 1);
-
-      // Major ticks.
-      var tick = g.selectAll("g").data(ticks, String),
-          tickEnter = tick.enter().insert("svg:g", "path").style("opacity", 1e-6),
-          tickExit = transition(tick.exit()).style("opacity", 1e-6).remove(),
-          tickUpdate = transition(tick).style("opacity", 1),
-          tickTransform;
-
-      // Domain.
-      var range = d3_scaleExtent(scale.range()),
-          path = g.selectAll(".domain").data([0]),
-          pathEnter = path.enter().append("svg:path").attr("class", "domain"),
-          pathUpdate = transition(path);
-
-      // Stash the new scale and grab the old scale.
-      var scale0 = this.__chart__ || scale;
-      this.__chart__ = scale.copy();
-
-      tickEnter.append("svg:line").attr("class", "tick");
-      tickEnter.append("svg:text");
-      tickUpdate.select("text").text(tickFormat);
-
-      switch (orient) {
-        case "bottom": {
-          tickTransform = d3_svg_axisX;
-          subtickUpdate.attr("y2", tickMinorSize);
-          tickEnter.select("text").attr("dy", ".71em").attr("text-anchor", "middle");
-          tickUpdate.select("line").attr("y2", tickMajorSize);
-          tickUpdate.select("text").attr("y", Math.max(tickMajorSize, 0) + tickPadding);
-          pathUpdate.attr("d", "M" + range[0] + "," + tickEndSize + "V0H" + range[1] + "V" + tickEndSize);
-          break;
-        }
-        case "top": {
-          tickTransform = d3_svg_axisX;
-          subtickUpdate.attr("y2", -tickMinorSize);
-          tickEnter.select("text").attr("text-anchor", "middle");
-          tickUpdate.select("line").attr("y2", -tickMajorSize);
-          tickUpdate.select("text").attr("y", -(Math.max(tickMajorSize, 0) + tickPadding));
-          pathUpdate.attr("d", "M" + range[0] + "," + -tickEndSize + "V0H" + range[1] + "V" + -tickEndSize);
-          break;
-        }
-        case "left": {
-          tickTransform = d3_svg_axisY;
-          subtickUpdate.attr("x2", -tickMinorSize);
-          tickEnter.select("text").attr("dy", ".32em").attr("text-anchor", "end");
-          tickUpdate.select("line").attr("x2", -tickMajorSize);
-          tickUpdate.select("text").attr("x", -(Math.max(tickMajorSize, 0) + tickPadding));
-          pathUpdate.attr("d", "M" + -tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + -tickEndSize);
-          break;
-        }
-        case "right": {
-          tickTransform = d3_svg_axisY;
-          subtickUpdate.attr("x2", tickMinorSize);
-          tickEnter.select("text").attr("dy", ".32em");
-          tickUpdate.select("line").attr("x2", tickMajorSize);
-          tickUpdate.select("text").attr("x", Math.max(tickMajorSize, 0) + tickPadding);
-          pathUpdate.attr("d", "M" + tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + tickEndSize);
-          break;
-        }
-      }
-
-      tickEnter.call(tickTransform, scale0);
-      tickUpdate.call(tickTransform, scale);
-      tickExit.call(tickTransform, scale);
-
-      subtickEnter.call(tickTransform, scale0);
-      subtickUpdate.call(tickTransform, scale);
-      subtickExit.call(tickTransform, scale);
-
-      function transition(o) {
-        return selection.delay ? o.transition()
-            .delay(selection[j][i].delay)
-            .duration(selection[j][i].duration)
-            .ease(selection.ease()) : o;
-      }
-    });
-  }
-
-  axis.scale = function(x) {
-    if (!arguments.length) return scale;
-    scale = x;
-    return axis;
-  };
-
-  axis.orient = function(x) {
-    if (!arguments.length) return orient;
-    orient = x;
-    return axis;
-  };
-
-  axis.ticks = function() {
-    if (!arguments.length) return tickArguments_;
-    tickArguments_ = arguments;
-    return axis;
-  };
-
-  axis.tickFormat = function(x) {
-    if (!arguments.length) return tickFormat_;
-    tickFormat_ = x;
-    return axis;
-  };
-
-  axis.tickSize = function(x, y, z) {
-    if (!arguments.length) return tickMajorSize;
-    var n = arguments.length - 1;
-    tickMajorSize = +x;
-    tickMinorSize = n > 1 ? +y : tickMajorSize;
-    tickEndSize = n > 0 ? +arguments[n] : tickMajorSize;
-    return axis;
-  };
-
-  axis.tickPadding = function(x) {
-    if (!arguments.length) return tickPadding;
-    tickPadding = +x;
-    return axis;
-  };
-
-  axis.tickSubdivide = function(x) {
-    if (!arguments.length) return tickSubdivide;
-    tickSubdivide = +x;
-    return axis;
-  };
-
-  return axis;
-};
-
-function d3_svg_axisX(selection, x) {
-  selection.attr("transform", function(d) { return "translate(" + x(d) + ",0)"; });
-}
-
-function d3_svg_axisY(selection, y) {
-  selection.attr("transform", function(d) { return "translate(0," + y(d) + ")"; });
-}
-
-function d3_svg_axisSubdivide(scale, ticks, m) {
-  subticks = [];
-  if (m && ticks.length > 1) {
-    var extent = d3_scaleExtent(scale.domain()),
-        subticks,
-        i = -1,
-        n = ticks.length,
-        d = (ticks[1] - ticks[0]) / ++m,
-        j,
-        v;
-    while (++i < n) {
-      for (j = m; --j > 0;) {
-        if ((v = +ticks[i] - j * d) >= extent[0]) {
-          subticks.push(v);
-        }
-      }
-    }
-    for (--i, j = 0; ++j < m && (v = +ticks[i] + j * d) < extent[1];) {
-      subticks.push(v);
-    }
-  }
-  return subticks;
-}
-d3.behavior = {};
-d3.behavior.drag = function() {
-  var event = d3.dispatch("drag", "dragstart", "dragend");
-
-  function drag() {
-    this
-        .on("mousedown.drag", mousedown)
-        .on("touchstart.drag", mousedown);
-
-    d3.select(window)
-        .on("mousemove.drag", d3_behavior_dragMove)
-        .on("touchmove.drag", d3_behavior_dragMove)
-        .on("mouseup.drag", d3_behavior_dragUp, true)
-        .on("touchend.drag", d3_behavior_dragUp, true)
-        .on("click.drag", d3_behavior_dragClick, true);
-  }
-
-  // snapshot the local context for subsequent dispatch
-  function start() {
-    d3_behavior_dragEvent = event;
-    d3_behavior_dragEventTarget = d3.event.target;
-    d3_behavior_dragOffset = d3_behavior_dragPoint((d3_behavior_dragTarget = this).parentNode);
-    d3_behavior_dragMoved = 0;
-    d3_behavior_dragArguments = arguments;
-  }
-
-  function mousedown() {
-    start.apply(this, arguments);
-    d3_behavior_dragDispatch("dragstart");
-  }
-
-  drag.on = function(type, listener) {
-    event[type].add(listener);
-    return drag;
-  };
-
-  return drag;
-};
-
-var d3_behavior_dragEvent,
-    d3_behavior_dragEventTarget,
-    d3_behavior_dragTarget,
-    d3_behavior_dragArguments,
-    d3_behavior_dragOffset,
-    d3_behavior_dragMoved,
-    d3_behavior_dragStopClick;
-
-function d3_behavior_dragDispatch(type) {
-  var o = d3.event, p = d3_behavior_dragTarget.parentNode, dx = 0, dy = 0;
-
-  if (p) {
-    p = d3_behavior_dragPoint(p);
-    dx = p[0] - d3_behavior_dragOffset[0];
-    dy = p[1] - d3_behavior_dragOffset[1];
-    d3_behavior_dragOffset = p;
-    d3_behavior_dragMoved |= dx | dy;
-  }
-
-  try {
-    d3.event = {dx: dx, dy: dy};
-    d3_behavior_dragEvent[type].dispatch.apply(d3_behavior_dragTarget, d3_behavior_dragArguments);
-  } finally {
-    d3.event = o;
-  }
-
-  o.preventDefault();
-}
-
-function d3_behavior_dragPoint(container) {
-  return d3.event.touches
-      ? d3.svg.touches(container)[0]
-      : d3.svg.mouse(container);
-}
-
-function d3_behavior_dragMove() {
-  if (!d3_behavior_dragTarget) return;
-  var parent = d3_behavior_dragTarget.parentNode;
-
-  // O NOES! The drag element was removed from the DOM.
-  if (!parent) return d3_behavior_dragUp();
-
-  d3_behavior_dragDispatch("drag");
-  d3_behavior_dragCancel();
-}
-
-function d3_behavior_dragUp() {
-  if (!d3_behavior_dragTarget) return;
-  d3_behavior_dragDispatch("dragend");
-  d3_behavior_dragTarget = null;
-
-  // If the node was moved, prevent the mouseup from propagating.
-  // Also prevent the subsequent click from propagating (e.g., for anchors).
-  if (d3_behavior_dragMoved && d3_behavior_dragEventTarget === d3.event.target) {
-    d3_behavior_dragStopClick = true;
-    d3_behavior_dragCancel();
-  }
-}
-
-function d3_behavior_dragClick() {
-  if (d3_behavior_dragStopClick && d3_behavior_dragEventTarget === d3.event.target) {
-    d3_behavior_dragCancel();
-    d3_behavior_dragStopClick = false;
-    d3_behavior_dragEventTarget = null;
-  }
-}
-
-function d3_behavior_dragCancel() {
-  d3.event.stopPropagation();
-  d3.event.preventDefault();
-}
-// TODO unbind zoom behavior?
-// TODO unbind listener?
-d3.behavior.zoom = function() {
-  var xyz = [0, 0, 0],
-      event = d3.dispatch("zoom");
-
-  function zoom() {
-    this
-        .on("mousedown.zoom", mousedown)
-        .on("mousewheel.zoom", mousewheel)
-        .on("DOMMouseScroll.zoom", mousewheel)
-        .on("dblclick.zoom", dblclick)
-        .on("touchstart.zoom", touchstart);
-
-    d3.select(window)
-        .on("mousemove.zoom", d3_behavior_zoomMousemove)
-        .on("mouseup.zoom", d3_behavior_zoomMouseup)
-        .on("touchmove.zoom", d3_behavior_zoomTouchmove)
-        .on("touchend.zoom", d3_behavior_zoomTouchup)
-        .on("click.zoom", d3_behavior_zoomClick, true);
-  }
-
-  // snapshot the local context for subsequent dispatch
-  function start() {
-    d3_behavior_zoomXyz = xyz;
-    d3_behavior_zoomDispatch = event.zoom.dispatch;
-    d3_behavior_zoomEventTarget = d3.event.target;
-    d3_behavior_zoomTarget = this;
-    d3_behavior_zoomArguments = arguments;
-  }
-
-  function mousedown() {
-    start.apply(this, arguments);
-    d3_behavior_zoomPanning = d3_behavior_zoomLocation(d3.svg.mouse(d3_behavior_zoomTarget));
-    d3_behavior_zoomMoved = false;
-    d3.event.preventDefault();
-    window.focus();
-  }
-
-  // store starting mouse location
-  function mousewheel() {
-    start.apply(this, arguments);
-    if (!d3_behavior_zoomZooming) d3_behavior_zoomZooming = d3_behavior_zoomLocation(d3.svg.mouse(d3_behavior_zoomTarget));
-    d3_behavior_zoomTo(d3_behavior_zoomDelta() + xyz[2], d3.svg.mouse(d3_behavior_zoomTarget), d3_behavior_zoomZooming);
-  }
-
-  function dblclick() {
-    start.apply(this, arguments);
-    var mouse = d3.svg.mouse(d3_behavior_zoomTarget);
-    d3_behavior_zoomTo(d3.event.shiftKey ? Math.ceil(xyz[2] - 1) : Math.floor(xyz[2] + 1), mouse, d3_behavior_zoomLocation(mouse));
-  }
-
-  // doubletap detection
-  function touchstart() {
-    start.apply(this, arguments);
-    var touches = d3_behavior_zoomTouchup(),
-        touch,
-        now = Date.now();
-    if ((touches.length === 1) && (now - d3_behavior_zoomLast < 300)) {
-      d3_behavior_zoomTo(1 + Math.floor(xyz[2]), touch = touches[0], d3_behavior_zoomLocations[touch.identifier]);
-    }
-    d3_behavior_zoomLast = now;
-  }
-
-  zoom.on = function(type, listener) {
-    event[type].add(listener);
-    return zoom;
-  };
-
-  return zoom;
-};
-
-var d3_behavior_zoomDiv,
-    d3_behavior_zoomPanning,
-    d3_behavior_zoomZooming,
-    d3_behavior_zoomLocations = {}, // identifier -> location
-    d3_behavior_zoomLast = 0,
-    d3_behavior_zoomXyz,
-    d3_behavior_zoomDispatch,
-    d3_behavior_zoomEventTarget,
-    d3_behavior_zoomTarget,
-    d3_behavior_zoomArguments,
-    d3_behavior_zoomMoved,
-    d3_behavior_zoomStopClick;
-
-function d3_behavior_zoomLocation(point) {
-  return [
-    point[0] - d3_behavior_zoomXyz[0],
-    point[1] - d3_behavior_zoomXyz[1],
-    d3_behavior_zoomXyz[2]
-  ];
-}
-
-// detect the pixels that would be scrolled by this wheel event
-function d3_behavior_zoomDelta() {
-
-  // mousewheel events are totally broken!
-  // https://bugs.webkit.org/show_bug.cgi?id=40441
-  // not only that, but Chrome and Safari differ in re. to acceleration!
-  if (!d3_behavior_zoomDiv) {
-    d3_behavior_zoomDiv = d3.select("body").append("div")
-        .style("visibility", "hidden")
-        .style("top", 0)
-        .style("height", 0)
-        .style("width", 0)
-        .style("overflow-y", "scroll")
-      .append("div")
-        .style("height", "2000px")
-      .node().parentNode;
-  }
-
-  var e = d3.event, delta;
-  try {
-    d3_behavior_zoomDiv.scrollTop = 1000;
-    d3_behavior_zoomDiv.dispatchEvent(e);
-    delta = 1000 - d3_behavior_zoomDiv.scrollTop;
-  } catch (error) {
-    delta = e.wheelDelta || (-e.detail * 5);
-  }
-
-  return delta * .005;
-}
-
-// Note: Since we don't rotate, it's possible for the touches to become
-// slightly detached from their original positions. Thus, we recompute the
-// touch points on touchend as well as touchstart!
-function d3_behavior_zoomTouchup() {
-  var touches = d3.svg.touches(d3_behavior_zoomTarget),
-      i = -1,
-      n = touches.length,
-      touch;
-  while (++i < n) d3_behavior_zoomLocations[(touch = touches[i]).identifier] = d3_behavior_zoomLocation(touch);
-  return touches;
-}
-
-function d3_behavior_zoomTouchmove() {
-  var touches = d3.svg.touches(d3_behavior_zoomTarget);
-  switch (touches.length) {
-
-    // single-touch pan
-    case 1: {
-      var touch = touches[0];
-      d3_behavior_zoomTo(d3_behavior_zoomXyz[2], touch, d3_behavior_zoomLocations[touch.identifier]);
-      break;
-    }
-
-    // double-touch pan + zoom
-    case 2: {
-      var p0 = touches[0],
-          p1 = touches[1],
-          p2 = [(p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2],
-          l0 = d3_behavior_zoomLocations[p0.identifier],
-          l1 = d3_behavior_zoomLocations[p1.identifier],
-          l2 = [(l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2, l0[2]];
-      d3_behavior_zoomTo(Math.log(d3.event.scale) / Math.LN2 + l0[2], p2, l2);
-      break;
-    }
-  }
-}
-
-function d3_behavior_zoomMousemove() {
-  d3_behavior_zoomZooming = null;
-  if (d3_behavior_zoomPanning) {
-    d3_behavior_zoomMoved = true;
-    d3_behavior_zoomTo(d3_behavior_zoomXyz[2], d3.svg.mouse(d3_behavior_zoomTarget), d3_behavior_zoomPanning);
-  }
-}
-
-function d3_behavior_zoomMouseup() {
-  if (d3_behavior_zoomPanning) {
-    if (d3_behavior_zoomMoved && d3_behavior_zoomEventTarget === d3.event.target) {
-      d3_behavior_zoomStopClick = true;
-    }
-    d3_behavior_zoomMousemove();
-    d3_behavior_zoomPanning = null;
-  }
-}
-
-function d3_behavior_zoomClick() {
-  if (d3_behavior_zoomStopClick && d3_behavior_zoomEventTarget === d3.event.target) {
-    d3.event.stopPropagation();
-    d3.event.preventDefault();
-    d3_behavior_zoomStopClick = false;
-    d3_behavior_zoomEventTarget = null;
-  }
-}
-
-function d3_behavior_zoomTo(z, x0, x1) {
-  var K = Math.pow(2, (d3_behavior_zoomXyz[2] = z) - x1[2]),
-      x = d3_behavior_zoomXyz[0] = x0[0] - K * x1[0],
-      y = d3_behavior_zoomXyz[1] = x0[1] - K * x1[1],
-      o = d3.event, // Events can be reentrant (e.g., focus).
-      k = Math.pow(2, z);
-
-  d3.event = {
-    scale: k,
-    translate: [x, y],
-    transform: function(sx, sy) {
-      if (sx) transform(sx, x);
-      if (sy) transform(sy, y);
-    }
-  };
-
-  function transform(scale, o) {
-    var domain = scale.__domain || (scale.__domain = scale.domain()),
-        range = scale.range().map(function(v) { return (v - o) / k; });
-    scale.domain(domain).domain(range.map(scale.invert));
-  }
-
-  try {
-    d3_behavior_zoomDispatch.apply(d3_behavior_zoomTarget, d3_behavior_zoomArguments);
-  } finally {
-    d3.event = o;
-  }
-
-  o.preventDefault();
-}
-})();
diff --git a/vendor/d3/d3.layout.js b/vendor/d3/d3.layout.js
deleted file mode 100644
index 2bfb9d3..0000000
--- a/vendor/d3/d3.layout.js
+++ /dev/null
@@ -1,1890 +0,0 @@
-(function(){d3.layout = {};
-// Implements hierarchical edge bundling using Holten's algorithm. For each
-// input link, a path is computed that travels through the tree, up the parent
-// hierarchy to the least common ancestor, and then back down to the destination
-// node. Each path is simply an array of nodes.
-d3.layout.bundle = function() {
-  return function(links) {
-    var paths = [],
-        i = -1,
-        n = links.length;
-    while (++i < n) paths.push(d3_layout_bundlePath(links[i]));
-    return paths;
-  };
-};
-
-function d3_layout_bundlePath(link) {
-  var start = link.source,
-      end = link.target,
-      lca = d3_layout_bundleLeastCommonAncestor(start, end),
-      points = [start];
-  while (start !== lca) {
-    start = start.parent;
-    points.push(start);
-  }
-  var k = points.length;
-  while (end !== lca) {
-    points.splice(k, 0, end);
-    end = end.parent;
-  }
-  return points;
-}
-
-function d3_layout_bundleAncestors(node) {
-  var ancestors = [],
-      parent = node.parent;
-  while (parent != null) {
-    ancestors.push(node);
-    node = parent;
-    parent = parent.parent;
-  }
-  ancestors.push(node);
-  return ancestors;
-}
-
-function d3_layout_bundleLeastCommonAncestor(a, b) {
-  if (a === b) return a;
-  var aNodes = d3_layout_bundleAncestors(a),
-      bNodes = d3_layout_bundleAncestors(b),
-      aNode = aNodes.pop(),
-      bNode = bNodes.pop(),
-      sharedNode = null;
-  while (aNode === bNode) {
-    sharedNode = aNode;
-    aNode = aNodes.pop();
-    bNode = bNodes.pop();
-  }
-  return sharedNode;
-}
-d3.layout.chord = function() {
-  var chord = {},
-      chords,
-      groups,
-      matrix,
-      n,
-      padding = 0,
-      sortGroups,
-      sortSubgroups,
-      sortChords;
-
-  function relayout() {
-    var subgroups = {},
-        groupSums = [],
-        groupIndex = d3.range(n),
-        subgroupIndex = [],
-        k,
-        x,
-        x0,
-        i,
-        j;
-
-    chords = [];
-    groups = [];
-
-    // Compute the sum.
-    k = 0, i = -1; while (++i < n) {
-      x = 0, j = -1; while (++j < n) {
-        x += matrix[i][j];
-      }
-      groupSums.push(x);
-      subgroupIndex.push(d3.range(n));
-      k += x;
-    }
-
-    // Sort groups…
-    if (sortGroups) {
-      groupIndex.sort(function(a, b) {
-        return sortGroups(groupSums[a], groupSums[b]);
-      });
-    }
-
-    // Sort subgroups…
-    if (sortSubgroups) {
-      subgroupIndex.forEach(function(d, i) {
-        d.sort(function(a, b) {
-          return sortSubgroups(matrix[i][a], matrix[i][b]);
-        });
-      });
-    }
-
-    // Convert the sum to scaling factor for [0, 2pi].
-    // TODO Allow start and end angle to be specified.
-    // TODO Allow padding to be specified as percentage?
-    k = (2 * Math.PI - padding * n) / k;
-
-    // Compute the start and end angle for each group and subgroup.
-    x = 0, i = -1; while (++i < n) {
-      x0 = x, j = -1; while (++j < n) {
-        var di = groupIndex[i],
-            dj = subgroupIndex[i][j],
-            v = matrix[di][dj];
-        subgroups[di + "-" + dj] = {
-          index: di,
-          subindex: dj,
-          startAngle: x,
-          endAngle: x += v * k,
-          value: v
-        };
-      }
-      groups.push({
-        index: di,
-        startAngle: x0,
-        endAngle: x,
-        value: (x - x0) / k
-      });
-      x += padding;
-    }
-
-    // Generate chords for each (non-empty) subgroup-subgroup link.
-    i = -1; while (++i < n) {
-      j = i - 1; while (++j < n) {
-        var source = subgroups[i + "-" + j],
-            target = subgroups[j + "-" + i];
-        if (source.value || target.value) {
-          chords.push(source.value < target.value
-              ? {source: target, target: source}
-              : {source: source, target: target});
-        }
-      }
-    }
-
-    if (sortChords) resort();
-  }
-
-  function resort() {
-    chords.sort(function(a, b) {
-      return sortChords(a.target.value, b.target.value);
-    });
-  }
-
-  chord.matrix = function(x) {
-    if (!arguments.length) return matrix;
-    n = (matrix = x) && matrix.length;
-    chords = groups = null;
-    return chord;
-  };
-
-  chord.padding = function(x) {
-    if (!arguments.length) return padding;
-    padding = x;
-    chords = groups = null;
-    return chord;
-  };
-
-  chord.sortGroups = function(x) {
-    if (!arguments.length) return sortGroups;
-    sortGroups = x;
-    chords = groups = null;
-    return chord;
-  };
-
-  chord.sortSubgroups = function(x) {
-    if (!arguments.length) return sortSubgroups;
-    sortSubgroups = x;
-    chords = null;
-    return chord;
-  };
-
-  chord.sortChords = function(x) {
-    if (!arguments.length) return sortChords;
-    sortChords = x;
-    if (chords) resort();
-    return chord;
-  };
-
-  chord.chords = function() {
-    if (!chords) relayout();
-    return chords;
-  };
-
-  chord.groups = function() {
-    if (!groups) relayout();
-    return groups;
-  };
-
-  return chord;
-};
-// A rudimentary force layout using Gauss-Seidel.
-d3.layout.force = function() {
-  var force = {},
-      event = d3.dispatch("tick"),
-      size = [1, 1],
-      drag,
-      alpha,
-      friction = .9,
-      linkDistance = d3_layout_forceLinkDistance,
-      linkStrength = d3_layout_forceLinkStrength,
-      charge = -30,
-      gravity = .1,
-      theta = .8,
-      interval,
-      nodes = [],
-      links = [],
-      distances,
-      strengths,
-      charges;
-
-  function repulse(node) {
-    return function(quad, x1, y1, x2, y2) {
-      if (quad.point !== node) {
-        var dx = quad.cx - node.x,
-            dy = quad.cy - node.y,
-            dn = 1 / Math.sqrt(dx * dx + dy * dy);
-
-        /* Barnes-Hut criterion. */
-        if ((x2 - x1) * dn < theta) {
-          var k = quad.charge * dn * dn;
-          node.px -= dx * k;
-          node.py -= dy * k;
-          return true;
-        }
-
-        if (quad.point && isFinite(dn)) {
-          var k = quad.pointCharge * dn * dn;
-          node.px -= dx * k;
-          node.py -= dy * k;
-        }
-      }
-      return !quad.charge;
-    };
-  }
-
-  function tick() {
-    var n = nodes.length,
-        m = links.length,
-        q,
-        i, // current index
-        o, // current object
-        s, // current source
-        t, // current target
-        l, // current distance
-        k, // current force
-        x, // x-distance
-        y; // y-distance
-
-    // gauss-seidel relaxation for links
-    for (i = 0; i < m; ++i) {
-      o = links[i];
-      s = o.source;
-      t = o.target;
-      x = t.x - s.x;
-      y = t.y - s.y;
-      if (l = (x * x + y * y)) {
-        l = alpha * strengths[i] * ((l = Math.sqrt(l)) - distances[i]) / l;
-        x *= l;
-        y *= l;
-        t.x -= x * (k = s.weight / (t.weight + s.weight));
-        t.y -= y * k;
-        s.x += x * (k = 1 - k);
-        s.y += y * k;
-      }
-    }
-
-    // apply gravity forces
-    if (k = alpha * gravity) {
-      x = size[0] / 2;
-      y = size[1] / 2;
-      i = -1; if (k) while (++i < n) {
-        o = nodes[i];
-        o.x += (x - o.x) * k;
-        o.y += (y - o.y) * k;
-      }
-    }
-
-    // compute quadtree center of mass and apply charge forces
-    if (charge) {
-      d3_layout_forceAccumulate(q = d3.geom.quadtree(nodes), alpha, charges);
-      i = -1; while (++i < n) {
-        if (!(o = nodes[i]).fixed) {
-          q.visit(repulse(o));
-        }
-      }
-    }
-
-    // position verlet integration
-    i = -1; while (++i < n) {
-      o = nodes[i];
-      if (o.fixed) {
-        o.x = o.px;
-        o.y = o.py;
-      } else {
-        o.x -= (o.px - (o.px = o.x)) * friction;
-        o.y -= (o.py - (o.py = o.y)) * friction;
-      }
-    }
-
-    event.tick.dispatch({type: "tick", alpha: alpha});
-
-    // simulated annealing, basically
-    return (alpha *= .99) < .005;
-  }
-
-  force.on = function(type, listener) {
-    event[type].add(listener);
-    return force;
-  };
-
-  force.nodes = function(x) {
-    if (!arguments.length) return nodes;
-    nodes = x;
-    return force;
-  };
-
-  force.links = function(x) {
-    if (!arguments.length) return links;
-    links = x;
-    return force;
-  };
-
-  force.size = function(x) {
-    if (!arguments.length) return size;
-    size = x;
-    return force;
-  };
-
-  force.linkDistance = function(x) {
-    if (!arguments.length) return linkDistance;
-    linkDistance = d3.functor(x);
-    return force;
-  };
-
-  // For backwards-compatibility.
-  force.distance = force.linkDistance;
-
-  force.linkStrength = function(x) {
-    if (!arguments.length) return linkStrength;
-    linkStrength = d3.functor(x);
-    return force;
-  };
-
-  force.friction = function(x) {
-    if (!arguments.length) return friction;
-    friction = x;
-    return force;
-  };
-
-  force.charge = function(x) {
-    if (!arguments.length) return charge;
-    charge = typeof x === "function" ? x : +x;
-    return force;
-  };
-
-  force.gravity = function(x) {
-    if (!arguments.length) return gravity;
-    gravity = x;
-    return force;
-  };
-
-  force.theta = function(x) {
-    if (!arguments.length) return theta;
-    theta = x;
-    return force;
-  };
-
-  force.start = function() {
-    var i,
-        j,
-        n = nodes.length,
-        m = links.length,
-        w = size[0],
-        h = size[1],
-        neighbors,
-        o;
-
-    for (i = 0; i < n; ++i) {
-      (o = nodes[i]).index = i;
-      o.weight = 0;
-    }
-
-    distances = [];
-    strengths = [];
-    for (i = 0; i < m; ++i) {
-      o = links[i];
-      if (typeof o.source == "number") o.source = nodes[o.source];
-      if (typeof o.target == "number") o.target = nodes[o.target];
-      distances[i] = linkDistance.call(this, o, i);
-      strengths[i] = linkStrength.call(this, o, i);
-      ++o.source.weight;
-      ++o.target.weight;
-    }
-
-    for (i = 0; i < n; ++i) {
-      o = nodes[i];
-      if (isNaN(o.x)) o.x = position("x", w);
-      if (isNaN(o.y)) o.y = position("y", h);
-      if (isNaN(o.px)) o.px = o.x;
-      if (isNaN(o.py)) o.py = o.y;
-    }
-
-    charges = [];
-    if (typeof charge === "function") {
-      for (i = 0; i < n; ++i) {
-        charges[i] = +charge.call(this, nodes[i], i);
-      }
-    } else {
-      for (i = 0; i < n; ++i) {
-        charges[i] = charge;
-      }
-    }
-
-    // initialize node position based on first neighbor
-    function position(dimension, size) {
-      var neighbors = neighbor(i),
-          j = -1,
-          m = neighbors.length,
-          x;
-      while (++j < m) if (!isNaN(x = neighbors[j][dimension])) return x;
-      return Math.random() * size;
-    }
-
-    // initialize neighbors lazily
-    function neighbor() {
-      if (!neighbors) {
-        neighbors = [];
-        for (j = 0; j < n; ++j) {
-          neighbors[j] = [];
-        }
-        for (j = 0; j < m; ++j) {
-          var o = links[j];
-          neighbors[o.source.index].push(o.target);
-          neighbors[o.target.index].push(o.source);
-        }
-      }
-      return neighbors[i];
-    }
-
-    return force.resume();
-  };
-
-  force.resume = function() {
-    alpha = .1;
-    d3.timer(tick);
-    return force;
-  };
-
-  force.stop = function() {
-    alpha = 0;
-    return force;
-  };
-
-  // use `node.call(force.drag)` to make nodes draggable
-  force.drag = function() {
-    if (!drag) drag = d3.behavior.drag()
-        .on("dragstart", dragstart)
-        .on("drag", d3_layout_forceDrag)
-        .on("dragend", d3_layout_forceDragEnd);
-
-    this.on("mouseover.force", d3_layout_forceDragOver)
-        .on("mouseout.force", d3_layout_forceDragOut)
-        .call(drag);
-  };
-
-  function dragstart(d) {
-    d3_layout_forceDragOver(d3_layout_forceDragNode = d);
-    d3_layout_forceDragForce = force;
-  }
-
-  return force;
-};
-
-var d3_layout_forceDragForce,
-    d3_layout_forceDragNode;
-
-function d3_layout_forceDragOver(d) {
-  d.fixed |= 2;
-}
-
-function d3_layout_forceDragOut(d) {
-  if (d !== d3_layout_forceDragNode) d.fixed &= 1;
-}
-
-function d3_layout_forceDragEnd() {
-  d3_layout_forceDrag();
-  d3_layout_forceDragNode.fixed &= 1;
-  d3_layout_forceDragForce = d3_layout_forceDragNode = null;
-}
-
-function d3_layout_forceDrag() {
-  d3_layout_forceDragNode.px += d3.event.dx;
-  d3_layout_forceDragNode.py += d3.event.dy;
-  d3_layout_forceDragForce.resume(); // restart annealing
-}
-
-function d3_layout_forceAccumulate(quad, alpha, charges) {
-  var cx = 0,
-      cy = 0;
-  quad.charge = 0;
-  if (!quad.leaf) {
-    var nodes = quad.nodes,
-        n = nodes.length,
-        i = -1,
-        c;
-    while (++i < n) {
-      c = nodes[i];
-      if (c == null) continue;
-      d3_layout_forceAccumulate(c, alpha, charges);
-      quad.charge += c.charge;
-      cx += c.charge * c.cx;
-      cy += c.charge * c.cy;
-    }
-  }
-  if (quad.point) {
-    // jitter internal nodes that are coincident
-    if (!quad.leaf) {
-      quad.point.x += Math.random() - .5;
-      quad.point.y += Math.random() - .5;
-    }
-    var k = alpha * charges[quad.point.index];
-    quad.charge += quad.pointCharge = k;
-    cx += k * quad.point.x;
-    cy += k * quad.point.y;
-  }
-  quad.cx = cx / quad.charge;
-  quad.cy = cy / quad.charge;
-}
-
-function d3_layout_forceLinkDistance(link) {
-  return 20;
-}
-
-function d3_layout_forceLinkStrength(link) {
-  return 1;
-}
-d3.layout.partition = function() {
-  var hierarchy = d3.layout.hierarchy(),
-      size = [1, 1]; // width, height
-
-  function position(node, x, dx, dy) {
-    var children = node.children;
-    node.x = x;
-    node.y = node.depth * dy;
-    node.dx = dx;
-    node.dy = dy;
-    if (children && (n = children.length)) {
-      var i = -1,
-          n,
-          c,
-          d;
-      dx = node.value ? dx / node.value : 0;
-      while (++i < n) {
-        position(c = children[i], x, d = c.value * dx, dy);
-        x += d;
-      }
-    }
-  }
-
-  function depth(node) {
-    var children = node.children,
-        d = 0;
-    if (children && (n = children.length)) {
-      var i = -1,
-          n;
-      while (++i < n) d = Math.max(d, depth(children[i]));
-    }
-    return 1 + d;
-  }
-
-  function partition(d, i) {
-    var nodes = hierarchy.call(this, d, i);
-    position(nodes[0], 0, size[0], size[1] / depth(nodes[0]));
-    return nodes;
-  }
-
-  partition.size = function(x) {
-    if (!arguments.length) return size;
-    size = x;
-    return partition;
-  };
-
-  return d3_layout_hierarchyRebind(partition, hierarchy);
-};
-d3.layout.pie = function() {
-  var value = Number,
-      sort = null,
-      startAngle = 0,
-      endAngle = 2 * Math.PI;
-
-  function pie(data, i) {
-
-    // Compute the start angle.
-    var a = +(typeof startAngle === "function"
-        ? startAngle.apply(this, arguments)
-        : startAngle);
-
-    // Compute the angular range (end - start).
-    var k = (typeof endAngle === "function"
-        ? endAngle.apply(this, arguments)
-        : endAngle) - startAngle;
-
-    // Optionally sort the data.
-    var index = d3.range(data.length);
-    if (sort != null) index.sort(function(i, j) {
-      return sort(data[i], data[j]);
-    });
-
-    // Compute the numeric values for each data element.
-    var values = data.map(value);
-
-    // Convert k into a scale factor from value to angle, using the sum.
-    k /= values.reduce(function(p, d) { return p + d; }, 0);
-
-    // Compute the arcs!
-    var arcs = index.map(function(i) {
-      return {
-        data: data[i],
-        value: d = values[i],
-        startAngle: a,
-        endAngle: a += d * k
-      };
-    });
-
-    // Return the arcs in the original data's order.
-    return data.map(function(d, i) {
-      return arcs[index[i]];
-    });
-  }
-
-  /**
-   * Specifies the value function *x*, which returns a nonnegative numeric value
-   * for each datum. The default value function is `Number`. The value function
-   * is passed two arguments: the current datum and the current index.
-   */
-  pie.value = function(x) {
-    if (!arguments.length) return value;
-    value = x;
-    return pie;
-  };
-
-  /**
-   * Specifies a sort comparison operator *x*. The comparator is passed two data
-   * elements from the data array, a and b; it returns a negative value if a is
-   * less than b, a positive value if a is greater than b, and zero if a equals
-   * b.
-   */
-  pie.sort = function(x) {
-    if (!arguments.length) return sort;
-    sort = x;
-    return pie;
-  };
-
-  /**
-   * Specifies the overall start angle of the pie chart. Defaults to 0. The
-   * start angle can be specified either as a constant or as a function; in the
-   * case of a function, it is evaluated once per array (as opposed to per
-   * element).
-   */
-  pie.startAngle = function(x) {
-    if (!arguments.length) return startAngle;
-    startAngle = x;
-    return pie;
-  };
-
-  /**
-   * Specifies the overall end angle of the pie chart. Defaults to 2π. The
-   * end angle can be specified either as a constant or as a function; in the
-   * case of a function, it is evaluated once per array (as opposed to per
-   * element).
-   */
-  pie.endAngle = function(x) {
-    if (!arguments.length) return endAngle;
-    endAngle = x;
-    return pie;
-  };
-
-  return pie;
-};
-// data is two-dimensional array of x,y; we populate y0
-d3.layout.stack = function() {
-  var values = Object,
-      order = d3_layout_stackOrders["default"],
-      offset = d3_layout_stackOffsets["zero"],
-      out = d3_layout_stackOut,
-      x = d3_layout_stackX,
-      y = d3_layout_stackY;
-
-  function stack(data, index) {
-
-    // Convert series to canonical two-dimensional representation.
-    var series = data.map(function(d, i) {
-      return values.call(stack, d, i);
-    });
-
-    // Convert each series to canonical [[x,y]] representation.
-    var points = series.map(function(d, i) {
-      return d.map(function(v, i) {
-        return [x.call(stack, v, i), y.call(stack, v, i)];
-      });
-    });
-
-    // Compute the order of series, and permute them.
-    var orders = order.call(stack, points, index);
-    series = d3.permute(series, orders);
-    points = d3.permute(points, orders);
-
-    // Compute the baseline…
-    var offsets = offset.call(stack, points, index);
-
-    // And propagate it to other series.
-    var n = series.length,
-        m = series[0].length,
-        i,
-        j,
-        o;
-    for (j = 0; j < m; ++j) {
-      out.call(stack, series[0][j], o = offsets[j], points[0][j][1]);
-      for (i = 1; i < n; ++i) {
-        out.call(stack, series[i][j], o += points[i - 1][j][1], points[i][j][1]);
-      }
-    }
-
-    return data;
-  }
-
-  stack.values = function(x) {
-    if (!arguments.length) return values;
-    values = x;
-    return stack;
-  };
-
-  stack.order = function(x) {
-    if (!arguments.length) return order;
-    order = typeof x === "function" ? x : d3_layout_stackOrders[x];
-    return stack;
-  };
-
-  stack.offset = function(x) {
-    if (!arguments.length) return offset;
-    offset = typeof x === "function" ? x : d3_layout_stackOffsets[x];
-    return stack;
-  };
-
-  stack.x = function(z) {
-    if (!arguments.length) return x;
-    x = z;
-    return stack;
-  };
-
-  stack.y = function(z) {
-    if (!arguments.length) return y;
-    y = z;
-    return stack;
-  };
-
-  stack.out = function(z) {
-    if (!arguments.length) return out;
-    out = z;
-    return stack;
-  };
-
-  return stack;
-}
-
-function d3_layout_stackX(d) {
-  return d.x;
-}
-
-function d3_layout_stackY(d) {
-  return d.y;
-}
-
-function d3_layout_stackOut(d, y0, y) {
-  d.y0 = y0;
-  d.y = y;
-}
-
-var d3_layout_stackOrders = {
-
-  "inside-out": function(data) {
-    var n = data.length,
-        i,
-        j,
-        max = data.map(d3_layout_stackMaxIndex),
-        sums = data.map(d3_layout_stackReduceSum),
-        index = d3.range(n).sort(function(a, b) { return max[a] - max[b]; }),
-        top = 0,
-        bottom = 0,
-        tops = [],
-        bottoms = [];
-    for (i = 0; i < n; ++i) {
-      j = index[i];
-      if (top < bottom) {
-        top += sums[j];
-        tops.push(j);
-      } else {
-        bottom += sums[j];
-        bottoms.push(j);
-      }
-    }
-    return bottoms.reverse().concat(tops);
-  },
-
-  "reverse": function(data) {
-    return d3.range(data.length).reverse();
-  },
-
-  "default": function(data) {
-    return d3.range(data.length);
-  }
-
-};
-
-var d3_layout_stackOffsets = {
-
-  "silhouette": function(data) {
-    var n = data.length,
-        m = data[0].length,
-        sums = [],
-        max = 0,
-        i,
-        j,
-        o,
-        y0 = [];
-    for (j = 0; j < m; ++j) {
-      for (i = 0, o = 0; i < n; i++) o += data[i][j][1];
-      if (o > max) max = o;
-      sums.push(o);
-    }
-    for (j = 0; j < m; ++j) {
-      y0[j] = (max - sums[j]) / 2;
-    }
-    return y0;
-  },
-
-  "wiggle": function(data) {
-    var n = data.length,
-        x = data[0],
-        m = x.length,
-        max = 0,
-        i,
-        j,
-        k,
-        s1,
-        s2,
-        s3,
-        dx,
-        o,
-        o0,
-        y0 = [];
-    y0[0] = o = o0 = 0;
-    for (j = 1; j < m; ++j) {
-      for (i = 0, s1 = 0; i < n; ++i) s1 += data[i][j][1];
-      for (i = 0, s2 = 0, dx = x[j][0] - x[j - 1][0]; i < n; ++i) {
-        for (k = 0, s3 = (data[i][j][1] - data[i][j - 1][1]) / (2 * dx); k < i; ++k) {
-          s3 += (data[k][j][1] - data[k][j - 1][1]) / dx;
-        }
-        s2 += s3 * data[i][j][1];
-      }
-      y0[j] = o -= s1 ? s2 / s1 * dx : 0;
-      if (o < o0) o0 = o;
-    }
-    for (j = 0; j < m; ++j) y0[j] -= o0;
-    return y0;
-  },
-
-  "expand": function(data) {
-    var n = data.length,
-        m = data[0].length,
-        k = 1 / n,
-        i,
-        j,
-        o,
-        y0 = [];
-    for (j = 0; j < m; ++j) {
-      for (i = 0, o = 0; i < n; i++) o += data[i][j][1];
-      if (o) for (i = 0; i < n; i++) data[i][j][1] /= o;
-      else for (i = 0; i < n; i++) data[i][j][1] = k;
-    }
-    for (j = 0; j < m; ++j) y0[j] = 0;
-    return y0;
-  },
-
-  "zero": function(data) {
-    var j = -1,
-        m = data[0].length,
-        y0 = [];
-    while (++j < m) y0[j] = 0;
-    return y0;
-  }
-
-};
-
-function d3_layout_stackMaxIndex(array) {
-  var i = 1,
-      j = 0,
-      v = array[0][1],
-      k,
-      n = array.length;
-  for (; i < n; ++i) {
-    if ((k = array[i][1]) > v) {
-      j = i;
-      v = k;
-    }
-  }
-  return j;
-}
-
-function d3_layout_stackReduceSum(d) {
-  return d.reduce(d3_layout_stackSum, 0);
-}
-
-function d3_layout_stackSum(p, d) {
-  return p + d[1];
-}
-d3.layout.histogram = function() {
-  var frequency = true,
-      valuer = Number,
-      ranger = d3_layout_histogramRange,
-      binner = d3_layout_histogramBinSturges;
-
-  function histogram(data, i) {
-    var bins = [],
-        values = data.map(valuer, this),
-        range = ranger.call(this, values, i),
-        thresholds = binner.call(this, range, values, i),
-        bin,
-        i = -1,
-        n = values.length,
-        m = thresholds.length - 1,
-        k = frequency ? 1 : 1 / n,
-        x;
-
-    // Initialize the bins.
-    while (++i < m) {
-      bin = bins[i] = [];
-      bin.dx = thresholds[i + 1] - (bin.x = thresholds[i]);
-      bin.y = 0;
-    }
-
-    // Fill the bins, ignoring values outside the range.
-    i = -1; while(++i < n) {
-      x = values[i];
-      if ((x >= range[0]) && (x <= range[1])) {
-        bin = bins[d3.bisect(thresholds, x, 1, m) - 1];
-        bin.y += k;
-        bin.push(data[i]);
-      }
-    }
-
-    return bins;
-  }
-
-  // Specifies how to extract a value from the associated data. The default
-  // value function is `Number`, which is equivalent to the identity function.
-  histogram.value = function(x) {
-    if (!arguments.length) return valuer;
-    valuer = x;
-    return histogram;
-  };
-
-  // Specifies the range of the histogram. Values outside the specified range
-  // will be ignored. The argument `x` may be specified either as a two-element
-  // array representing the minimum and maximum value of the range, or as a
-  // function that returns the range given the array of values and the current
-  // index `i`. The default range is the extent (minimum and maximum) of the
-  // values.
-  histogram.range = function(x) {
-    if (!arguments.length) return ranger;
-    ranger = d3.functor(x);
-    return histogram;
-  };
-
-  // Specifies how to bin values in the histogram. The argument `x` may be
-  // specified as a number, in which case the range of values will be split
-  // uniformly into the given number of bins. Or, `x` may be an array of
-  // threshold values, defining the bins; the specified array must contain the
-  // rightmost (upper) value, thus specifying n + 1 values for n bins. Or, `x`
-  // may be a function which is evaluated, being passed the range, the array of
-  // values, and the current index `i`, returning an array of thresholds. The
-  // default bin function will divide the values into uniform bins using
-  // Sturges' formula.
-  histogram.bins = function(x) {
-    if (!arguments.length) return binner;
-    binner = typeof x === "number"
-        ? function(range) { return d3_layout_histogramBinFixed(range, x); }
-        : d3.functor(x);
-    return histogram;
-  };
-
-  // Specifies whether the histogram's `y` value is a count (frequency) or a
-  // probability (density). The default value is true.
-  histogram.frequency = function(x) {
-    if (!arguments.length) return frequency;
-    frequency = !!x;
-    return histogram;
-  };
-
-  return histogram;
-};
-
-function d3_layout_histogramBinSturges(range, values) {
-  return d3_layout_histogramBinFixed(range, Math.ceil(Math.log(values.length) / Math.LN2 + 1));
-}
-
-function d3_layout_histogramBinFixed(range, n) {
-  var x = -1,
-      b = +range[0],
-      m = (range[1] - b) / n,
-      f = [];
-  while (++x <= n) f[x] = m * x + b;
-  return f;
-}
-
-function d3_layout_histogramRange(values) {
-  return [d3.min(values), d3.max(values)];
-}
-d3.layout.hierarchy = function() {
-  var sort = d3_layout_hierarchySort,
-      children = d3_layout_hierarchyChildren,
-      value = d3_layout_hierarchyValue;
-
-  // Recursively compute the node depth and value.
-  // Also converts the data representation into a standard hierarchy structure.
-  function recurse(data, depth, nodes) {
-    var childs = children.call(hierarchy, data, depth),
-        node = d3_layout_hierarchyInline ? data : {data: data};
-    node.depth = depth;
-    nodes.push(node);
-    if (childs && (n = childs.length)) {
-      var i = -1,
-          n,
-          c = node.children = [],
-          v = 0,
-          j = depth + 1;
-      while (++i < n) {
-        d = recurse(childs[i], j, nodes);
-        d.parent = node;
-        c.push(d);
-        v += d.value;
-      }
-      if (sort) c.sort(sort);
-      if (value) node.value = v;
-    } else if (value) {
-      node.value = +value.call(hierarchy, data, depth) || 0;
-    }
-    return node;
-  }
-
-  // Recursively re-evaluates the node value.
-  function revalue(node, depth) {
-    var children = node.children,
-        v = 0;
-    if (children && (n = children.length)) {
-      var i = -1,
-          n,
-          j = depth + 1;
-      while (++i < n) v += revalue(children[i], j);
-    } else if (value) {
-      v = +value.call(hierarchy, d3_layout_hierarchyInline ? node : node.data, depth) || 0;
-    }
-    if (value) node.value = v;
-    return v;
-  }
-
-  function hierarchy(d) {
-    var nodes = [];
-    recurse(d, 0, nodes);
-    return nodes;
-  }
-
-  hierarchy.sort = function(x) {
-    if (!arguments.length) return sort;
-    sort = x;
-    return hierarchy;
-  };
-
-  hierarchy.children = function(x) {
-    if (!arguments.length) return children;
-    children = x;
-    return hierarchy;
-  };
-
-  hierarchy.value = function(x) {
-    if (!arguments.length) return value;
-    value = x;
-    return hierarchy;
-  };
-
-  // Re-evaluates the `value` property for the specified hierarchy.
-  hierarchy.revalue = function(root) {
-    revalue(root, 0);
-    return root;
-  };
-
-  return hierarchy;
-};
-
-// A method assignment helper for hierarchy subclasses.
-function d3_layout_hierarchyRebind(object, hierarchy) {
-  object.sort = d3.rebind(object, hierarchy.sort);
-  object.children = d3.rebind(object, hierarchy.children);
-  object.links = d3_layout_hierarchyLinks;
-  object.value = d3.rebind(object, hierarchy.value);
-
-  // If the new API is used, enabling inlining.
-  object.nodes = function(d) {
-    d3_layout_hierarchyInline = true;
-    return (object.nodes = object)(d);
-  };
-
-  return object;
-}
-
-function d3_layout_hierarchyChildren(d) {
-  return d.children;
-}
-
-function d3_layout_hierarchyValue(d) {
-  return d.value;
-}
-
-function d3_layout_hierarchySort(a, b) {
-  return b.value - a.value;
-}
-
-// Returns an array source+target objects for the specified nodes.
-function d3_layout_hierarchyLinks(nodes) {
-  return d3.merge(nodes.map(function(parent) {
-    return (parent.children || []).map(function(child) {
-      return {source: parent, target: child};
-    });
-  }));
-}
-
-// For backwards-compatibility, don't enable inlining by default.
-var d3_layout_hierarchyInline = false;
-d3.layout.pack = function() {
-  var hierarchy = d3.layout.hierarchy().sort(d3_layout_packSort),
-      size = [1, 1];
-
-  function pack(d, i) {
-    var nodes = hierarchy.call(this, d, i),
-        root = nodes[0];
-
-    // Recursively compute the layout.
-    root.x = 0;
-    root.y = 0;
-    d3_layout_packTree(root);
-
-    // Scale the layout to fit the requested size.
-    var w = size[0],
-        h = size[1],
-        k = 1 / Math.max(2 * root.r / w, 2 * root.r / h);
-    d3_layout_packTransform(root, w / 2, h / 2, k);
-
-    return nodes;
-  }
-
-  pack.size = function(x) {
-    if (!arguments.length) return size;
-    size = x;
-    return pack;
-  };
-
-  return d3_layout_hierarchyRebind(pack, hierarchy);
-};
-
-function d3_layout_packSort(a, b) {
-  return a.value - b.value;
-}
-
-function d3_layout_packInsert(a, b) {
-  var c = a._pack_next;
-  a._pack_next = b;
-  b._pack_prev = a;
-  b._pack_next = c;
-  c._pack_prev = b;
-}
-
-function d3_layout_packSplice(a, b) {
-  a._pack_next = b;
-  b._pack_prev = a;
-}
-
-function d3_layout_packIntersects(a, b) {
-  var dx = b.x - a.x,
-      dy = b.y - a.y,
-      dr = a.r + b.r;
-  return (dr * dr - dx * dx - dy * dy) > .001; // within epsilon
-}
-
-function d3_layout_packCircle(nodes) {
-  var xMin = Infinity,
-      xMax = -Infinity,
-      yMin = Infinity,
-      yMax = -Infinity,
-      n = nodes.length,
-      a, b, c, j, k;
-
-  function bound(node) {
-    xMin = Math.min(node.x - node.r, xMin);
-    xMax = Math.max(node.x + node.r, xMax);
-    yMin = Math.min(node.y - node.r, yMin);
-    yMax = Math.max(node.y + node.r, yMax);
-  }
-
-  // Create node links.
-  nodes.forEach(d3_layout_packLink);
-
-  // Create first node.
-  a = nodes[0];
-  a.x = -a.r;
-  a.y = 0;
-  bound(a);
-
-  // Create second node.
-  if (n > 1) {
-    b = nodes[1];
-    b.x = b.r;
-    b.y = 0;
-    bound(b);
-
-    // Create third node and build chain.
-    if (n > 2) {
-      c = nodes[2];
-      d3_layout_packPlace(a, b, c);
-      bound(c);
-      d3_layout_packInsert(a, c);
-      a._pack_prev = c;
-      d3_layout_packInsert(c, b);
-      b = a._pack_next;
-
-      // Now iterate through the rest.
-      for (var i = 3; i < n; i++) {
-        d3_layout_packPlace(a, b, c = nodes[i]);
-
-        // Search for the closest intersection.
-        var isect = 0, s1 = 1, s2 = 1;
-        for (j = b._pack_next; j !== b; j = j._pack_next, s1++) {
-          if (d3_layout_packIntersects(j, c)) {
-            isect = 1;
-            break;
-          }
-        }
-        if (isect == 1) {
-          for (k = a._pack_prev; k !== j._pack_prev; k = k._pack_prev, s2++) {
-            if (d3_layout_packIntersects(k, c)) {
-              if (s2 < s1) {
-                isect = -1;
-                j = k;
-              }
-              break;
-            }
-          }
-        }
-
-        // Update node chain.
-        if (isect == 0) {
-          d3_layout_packInsert(a, c);
-          b = c;
-          bound(c);
-        } else if (isect > 0) {
-          d3_layout_packSplice(a, j);
-          b = j;
-          i--;
-        } else { // isect < 0
-          d3_layout_packSplice(j, b);
-          a = j;
-          i--;
-        }
-      }
-    }
-  }
-
-  // Re-center the circles and return the encompassing radius.
-  var cx = (xMin + xMax) / 2,
-      cy = (yMin + yMax) / 2,
-      cr = 0;
-  for (var i = 0; i < n; i++) {
-    var node = nodes[i];
-    node.x -= cx;
-    node.y -= cy;
-    cr = Math.max(cr, node.r + Math.sqrt(node.x * node.x + node.y * node.y));
-  }
-
-  // Remove node links.
-  nodes.forEach(d3_layout_packUnlink);
-
-  return cr;
-}
-
-function d3_layout_packLink(node) {
-  node._pack_next = node._pack_prev = node;
-}
-
-function d3_layout_packUnlink(node) {
-  delete node._pack_next;
-  delete node._pack_prev;
-}
-
-function d3_layout_packTree(node) {
-  var children = node.children;
-  if (children && children.length) {
-    children.forEach(d3_layout_packTree);
-    node.r = d3_layout_packCircle(children);
-  } else {
-    node.r = Math.sqrt(node.value);
-  }
-}
-
-function d3_layout_packTransform(node, x, y, k) {
-  var children = node.children;
-  node.x = (x += k * node.x);
-  node.y = (y += k * node.y);
-  node.r *= k;
-  if (children) {
-    var i = -1, n = children.length;
-    while (++i < n) d3_layout_packTransform(children[i], x, y, k);
-  }
-}
-
-function d3_layout_packPlace(a, b, c) {
-  var db = a.r + c.r,
-      dx = b.x - a.x,
-      dy = b.y - a.y;
-  if (db && (dx || dy)) {
-    var da = b.r + c.r,
-        dc = Math.sqrt(dx * dx + dy * dy),
-        cos = Math.max(-1, Math.min(1, (db * db + dc * dc - da * da) / (2 * db * dc))),
-        theta = Math.acos(cos),
-        x = cos * (db /= dc),
-        y = Math.sin(theta) * db;
-    c.x = a.x + x * dx + y * dy;
-    c.y = a.y + x * dy - y * dx;
-  } else {
-    c.x = a.x + db;
-    c.y = a.y;
-  }
-}
-// Implements a hierarchical layout using the cluster (or dendogram) algorithm.
-d3.layout.cluster = function() {
-  var hierarchy = d3.layout.hierarchy().sort(null).value(null),
-      separation = d3_layout_treeSeparation,
-      size = [1, 1]; // width, height
-
-  function cluster(d, i) {
-    var nodes = hierarchy.call(this, d, i),
-        root = nodes[0],
-        previousNode,
-        x = 0,
-        kx,
-        ky;
-
-    // First walk, computing the initial x & y values.
-    d3_layout_treeVisitAfter(root, function(node) {
-      var children = node.children;
-      if (children && children.length) {
-        node.x = d3_layout_clusterX(children);
-        node.y = d3_layout_clusterY(children);
-      } else {
-        node.x = previousNode ? x += separation(node, previousNode) : 0;
-        node.y = 0;
-        previousNode = node;
-      }
-    });
-
-    // Compute the left-most, right-most, and depth-most nodes for extents.
-    var left = d3_layout_clusterLeft(root),
-        right = d3_layout_clusterRight(root),
-        x0 = left.x - separation(left, right) / 2,
-        x1 = right.x + separation(right, left) / 2;
-
-    // Second walk, normalizing x & y to the desired size.
-    d3_layout_treeVisitAfter(root, function(node) {
-      node.x = (node.x - x0) / (x1 - x0) * size[0];
-      node.y = (1 - node.y / root.y) * size[1];
-    });
-
-    return nodes;
-  }
-
-  cluster.separation = function(x) {
-    if (!arguments.length) return separation;
-    separation = x;
-    return cluster;
-  };
-
-  cluster.size = function(x) {
-    if (!arguments.length) return size;
-    size = x;
-    return cluster;
-  };
-
-  return d3_layout_hierarchyRebind(cluster, hierarchy);
-};
-
-function d3_layout_clusterY(children) {
-  return 1 + d3.max(children, function(child) {
-    return child.y;
-  });
-}
-
-function d3_layout_clusterX(children) {
-  return children.reduce(function(x, child) {
-    return x + child.x;
-  }, 0) / children.length;
-}
-
-function d3_layout_clusterLeft(node) {
-  var children = node.children;
-  return children && children.length ? d3_layout_clusterLeft(children[0]) : node;
-}
-
-function d3_layout_clusterRight(node) {
-  var children = node.children, n;
-  return children && (n = children.length) ? d3_layout_clusterRight(children[n - 1]) : node;
-}
-// Node-link tree diagram using the Reingold-Tilford "tidy" algorithm
-d3.layout.tree = function() {
-  var hierarchy = d3.layout.hierarchy().sort(null).value(null),
-      separation = d3_layout_treeSeparation,
-      size = [1, 1]; // width, height
-
-  function tree(d, i) {
-    var nodes = hierarchy.call(this, d, i),
-        root = nodes[0];
-
-    function firstWalk(node, previousSibling) {
-      var children = node.children,
-          layout = node._tree;
-      if (children && (n = children.length)) {
-        var n,
-            firstChild = children[0],
-            previousChild,
-            ancestor = firstChild,
-            child,
-            i = -1;
-        while (++i < n) {
-          child = children[i];
-          firstWalk(child, previousChild);
-          ancestor = apportion(child, previousChild, ancestor);
-          previousChild = child;
-        }
-        d3_layout_treeShift(node);
-        var midpoint = .5 * (firstChild._tree.prelim + child._tree.prelim);
-        if (previousSibling) {
-          layout.prelim = previousSibling._tree.prelim + separation(node, previousSibling);
-          layout.mod = layout.prelim - midpoint;
-        } else {
-          layout.prelim = midpoint;
-        }
-      } else {
-        if (previousSibling) {
-          layout.prelim = previousSibling._tree.prelim + separation(node, previousSibling);
-        }
-      }
-    }
-
-    function secondWalk(node, x) {
-      node.x = node._tree.prelim + x;
-      var children = node.children;
-      if (children && (n = children.length)) {
-        var i = -1,
-            n;
-        x += node._tree.mod;
-        while (++i < n) {
-          secondWalk(children[i], x);
-        }
-      }
-    }
-
-    function apportion(node, previousSibling, ancestor) {
-      if (previousSibling) {
-        var vip = node,
-            vop = node,
-            vim = previousSibling,
-            vom = node.parent.children[0],
-            sip = vip._tree.mod,
-            sop = vop._tree.mod,
-            sim = vim._tree.mod,
-            som = vom._tree.mod,
-            shift;
-        while (vim = d3_layout_treeRight(vim), vip = d3_layout_treeLeft(vip), vim && vip) {
-          vom = d3_layout_treeLeft(vom);
-          vop = d3_layout_treeRight(vop);
-          vop._tree.ancestor = node;
-          shift = vim._tree.prelim + sim - vip._tree.prelim - sip + separation(vim, vip);
-          if (shift > 0) {
-            d3_layout_treeMove(d3_layout_treeAncestor(vim, node, ancestor), node, shift);
-            sip += shift;
-            sop += shift;
-          }
-          sim += vim._tree.mod;
-          sip += vip._tree.mod;
-          som += vom._tree.mod;
-          sop += vop._tree.mod;
-        }
-        if (vim && !d3_layout_treeRight(vop)) {
-          vop._tree.thread = vim;
-          vop._tree.mod += sim - sop;
-        }
-        if (vip && !d3_layout_treeLeft(vom)) {
-          vom._tree.thread = vip;
-          vom._tree.mod += sip - som;
-          ancestor = node;
-        }
-      }
-      return ancestor;
-    }
-
-    // Initialize temporary layout variables.
-    d3_layout_treeVisitAfter(root, function(node, previousSibling) {
-      node._tree = {
-        ancestor: node,
-        prelim: 0,
-        mod: 0,
-        change: 0,
-        shift: 0,
-        number: previousSibling ? previousSibling._tree.number + 1 : 0
-      };
-    });
-
-    // Compute the layout using Buchheim et al.'s algorithm.
-    firstWalk(root);
-    secondWalk(root, -root._tree.prelim);
-
-    // Compute the left-most, right-most, and depth-most nodes for extents.
-    var left = d3_layout_treeSearch(root, d3_layout_treeLeftmost),
-        right = d3_layout_treeSearch(root, d3_layout_treeRightmost),
-        deep = d3_layout_treeSearch(root, d3_layout_treeDeepest),
-        x0 = left.x - separation(left, right) / 2,
-        x1 = right.x + separation(right, left) / 2,
-        y1 = deep.depth || 1;
-
-    // Clear temporary layout variables; transform x and y.
-    d3_layout_treeVisitAfter(root, function(node) {
-      node.x = (node.x - x0) / (x1 - x0) * size[0];
-      node.y = node.depth / y1 * size[1];
-      delete node._tree;
-    });
-
-    return nodes;
-  }
-
-  tree.separation = function(x) {
-    if (!arguments.length) return separation;
-    separation = x;
-    return tree;
-  };
-
-  tree.size = function(x) {
-    if (!arguments.length) return size;
-    size = x;
-    return tree;
-  };
-
-  return d3_layout_hierarchyRebind(tree, hierarchy);
-};
-
-function d3_layout_treeSeparation(a, b) {
-  return a.parent == b.parent ? 1 : 2;
-}
-
-// function d3_layout_treeSeparationRadial(a, b) {
-//   return (a.parent == b.parent ? 1 : 2) / a.depth;
-// }
-
-function d3_layout_treeLeft(node) {
-  var children = node.children;
-  return children && children.length ? children[0] : node._tree.thread;
-}
-
-function d3_layout_treeRight(node) {
-  var children = node.children,
-      n;
-  return children && (n = children.length) ? children[n - 1] : node._tree.thread;
-}
-
-function d3_layout_treeSearch(node, compare) {
-  var children = node.children;
-  if (children && (n = children.length)) {
-    var child,
-        n,
-        i = -1;
-    while (++i < n) {
-      if (compare(child = d3_layout_treeSearch(children[i], compare), node) > 0) {
-        node = child;
-      }
-    }
-  }
-  return node;
-}
-
-function d3_layout_treeRightmost(a, b) {
-  return a.x - b.x;
-}
-
-function d3_layout_treeLeftmost(a, b) {
-  return b.x - a.x;
-}
-
-function d3_layout_treeDeepest(a, b) {
-  return a.depth - b.depth;
-}
-
-function d3_layout_treeVisitAfter(node, callback) {
-  function visit(node, previousSibling) {
-    var children = node.children;
-    if (children && (n = children.length)) {
-      var child,
-          previousChild = null,
-          i = -1,
-          n;
-      while (++i < n) {
-        child = children[i];
-        visit(child, previousChild);
-        previousChild = child;
-      }
-    }
-    callback(node, previousSibling);
-  }
-  visit(node, null);
-}
-
-function d3_layout_treeShift(node) {
-  var shift = 0,
-      change = 0,
-      children = node.children,
-      i = children.length,
-      child;
-  while (--i >= 0) {
-    child = children[i]._tree;
-    child.prelim += shift;
-    child.mod += shift;
-    shift += child.shift + (change += child.change);
-  }
-}
-
-function d3_layout_treeMove(ancestor, node, shift) {
-  ancestor = ancestor._tree;
-  node = node._tree;
-  var change = shift / (node.number - ancestor.number);
-  ancestor.change += change;
-  node.change -= change;
-  node.shift += shift;
-  node.prelim += shift;
-  node.mod += shift;
-}
-
-function d3_layout_treeAncestor(vim, node, ancestor) {
-  return vim._tree.ancestor.parent == node.parent
-      ? vim._tree.ancestor
-      : ancestor;
-}
-// Squarified Treemaps by Mark Bruls, Kees Huizing, and Jarke J. van Wijk
-// Modified to support a target aspect ratio by Jeff Heer
-d3.layout.treemap = function() {
-  var hierarchy = d3.layout.hierarchy(),
-      round = Math.round,
-      size = [1, 1], // width, height
-      padding = null,
-      pad = d3_layout_treemapPadNull,
-      sticky = false,
-      stickies,
-      ratio = 0.5 * (1 + Math.sqrt(5)); // golden ratio
-
-  // Compute the area for each child based on value & scale.
-  function scale(children, k) {
-    var i = -1,
-        n = children.length,
-        child,
-        area;
-    while (++i < n) {
-      area = (child = children[i]).value * (k < 0 ? 0 : k);
-      child.area = isNaN(area) || area <= 0 ? 0 : area;
-    }
-  }
-
-  // Recursively arranges the specified node's children into squarified rows.
-  function squarify(node) {
-    var children = node.children;
-    if (children && children.length) {
-      var rect = pad(node),
-          row = [],
-          remaining = children.slice(), // copy-on-write
-          child,
-          best = Infinity, // the best row score so far
-          score, // the current row score
-          u = Math.min(rect.dx, rect.dy), // initial orientation
-          n;
-      scale(remaining, rect.dx * rect.dy / node.value);
-      row.area = 0;
-      while ((n = remaining.length) > 0) {
-        row.push(child = remaining[n - 1]);
-        row.area += child.area;
-        if ((score = worst(row, u)) <= best) { // continue with this orientation
-          remaining.pop();
-          best = score;
-        } else { // abort, and try a different orientation
-          row.area -= row.pop().area;
-          position(row, u, rect, false);
-          u = Math.min(rect.dx, rect.dy);
-          row.length = row.area = 0;
-          best = Infinity;
-        }
-      }
-      if (row.length) {
-        position(row, u, rect, true);
-        row.length = row.area = 0;
-      }
-      children.forEach(squarify);
-    }
-  }
-
-  // Recursively resizes the specified node's children into existing rows.
-  // Preserves the existing layout!
-  function stickify(node) {
-    var children = node.children;
-    if (children && children.length) {
-      var rect = pad(node),
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-      row.area = 0;
-      while (child = remaining.pop()) {
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-        }
-      }
-      children.forEach(stickify);
-    }
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-  // Computes the score for the specified row, as the worst aspect ratio.
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-        n = row.length;
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-    }
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-    u *= u;
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-  }
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-  // Positions the specified row of nodes. Modifies `rect`.
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-        y = rect.y,
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-        o.x = x;
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-      }
-      o.z = true;
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-      rect.y += v;
-      rect.dy -= v;
-    } else { // vertical subdivision
-      if (flush || v > rect.dx) v = v ? rect.dx : 0; // over+underflow
-      while (++i < n) {
-        o = row[i];
-        o.x = x;
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-        o.dx = v;
-        y += o.dy = v ? round(o.area / v) : 0;
-      }
-      o.z = false;
-      o.dy += rect.y + rect.dy - y; // rounding error
-      rect.x += v;
-      rect.dx -= v;
-    }
-  }
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-  function treemap(d) {
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-    root.y = 0;
-    root.dx = size[0];
-    root.dy = size[1];
-    if (stickies) hierarchy.revalue(root);
-    scale([root], root.dx * root.dy / root.value);
-    (stickies ? stickify : squarify)(root);
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-    return nodes;
-  }
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-  treemap.size = function(x) {
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-  treemap.padding = function(x) {
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-    function padFunction(node) {
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-      return p == null
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-    }
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-    function padConstant(node) {
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-    }
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-    var type;
-    pad = (padding = x) == null ? d3_layout_treemapPadNull
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-        : padConstant;
-    return treemap;
-  };
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-  treemap.round = function(x) {
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-    round = x ? Math.round : Number;
-    return treemap;
-  };
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-    sticky = x;
-    stickies = null;
-    return treemap;
-  };
-
-  treemap.ratio = function(x) {
-    if (!arguments.length) return ratio;
-    ratio = x;
-    return treemap;
-  };
-
-  return d3_layout_hierarchyRebind(treemap, hierarchy);
-};
-
-function d3_layout_treemapPadNull(node) {
-  return {x: node.x, y: node.y, dx: node.dx, dy: node.dy};
-}
-
-function d3_layout_treemapPad(node, padding) {
-  var x = node.x + padding[3],
-      y = node.y + padding[0],
-      dx = node.dx - padding[1] - padding[3],
-      dy = node.dy - padding[0] - padding[2];
-  if (dx < 0) { x += dx / 2; dx = 0; }
-  if (dy < 0) { y += dy / 2; dy = 0; }
-  return {x: x, y: y, dx: dx, dy: dy};
-}
-})();
diff --git a/vendor/d3/d3.layout.min.js b/vendor/d3/d3.layout.min.js
deleted file mode 100644
index c7016b5..0000000
--- a/vendor/d3/d3.layout.min.js
+++ /dev/null
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f(){d.apply(this,arguments),de||(de=dp(d3.svg.mouse(dk))),dw(dq()+a[2],d3.svg.mouse(dk),de)}function e(){d.apply(this,arguments),dd=dp(d3.svg.mouse(dk)),dm=!1,d3.event.preventDefault(),window.focus()}function d(){dh=a,di=b.zoom.dispatch,dj=d3.event.target,dk=this,dl=arguments}function c(){this.on("mousedown.zoom",e).on("mousewheel.zoom",f).on("DOMMouseScroll.zoom",f).on("dblclick.zoom",g).on("touchstart.zoom",h),d3.select(window).on("mousemove.zoom",dt).on("mouseup.zoom",du).on("touchmove.zoom",ds).on("touchend.zoom",dr).on("click.zoom",dv,!0)}var a=[0,0,0],b=d3.dispatch("zoom");c.on=function(a,d){b[a].add(d);return c};return c};var dc,dd,de,df={},dg=0,dh,di,dj,dk,dl,dm,dn})()
\ No newline at end of file
diff --git a/vendor/d3/d3.time.js b/vendor/d3/d3.time.js
deleted file mode 100644
index e9df4e5..0000000
--- a/vendor/d3/d3.time.js
+++ /dev/null
@@ -1,663 +0,0 @@
-(function(){d3.time = {};
-
-var d3_time = Date;
-d3.time.format = function(template) {
-  var n = template.length;
-
-  function format(date) {
-    var string = [],
-        i = -1,
-        j = 0,
-        c,
-        f;
-    while (++i < n) {
-      if (template.charCodeAt(i) == 37) {
-        string.push(
-            template.substring(j, i),
-            (f = d3_time_formats[c = template.charAt(++i)])
-            ? f(date) : c);
-        j = i + 1;
-      }
-    }
-    string.push(template.substring(j, i));
-    return string.join("");
-  }
-
-  format.parse = function(string) {
-    var date = new d3_time(1900, 0, 1),
-        i = d3_time_parse(date, template, string, 0);
-    if (i != string.length) return null;
-    if (date.hour12) {
-      var hours = date.getHours() % 12;
-      date.setHours(date.hour12pm ? hours + 12 : hours);
-    }
-    delete date.hour12;
-    delete date.hour12pm;
-    return date;
-  };
-
-  format.toString = function() {
-    return template;
-  };
-
-  return format;
-};
-
-function d3_time_parse(date, template, string, j) {
-  var c,
-      p,
-      i = 0,
-      n = template.length,
-      m = string.length;
-  while (i < n) {
-    if (j >= m) return -1;
-    c = template.charCodeAt(i++);
-    if (c == 37) {
-      p = d3_time_parsers[template.charAt(i++)];
-      if (!p || ((j = p(date, string, j)) < 0)) return -1;
-    } else if (c != string.charCodeAt(j++)) {
-      return -1;
-    }
-  }
-  return j;
-}
-
-var d3_time_zfill2 = d3.format("02d"),
-    d3_time_zfill3 = d3.format("03d"),
-    d3_time_zfill4 = d3.format("04d"),
-    d3_time_sfill2 = d3.format("2d");
-
-var d3_time_formats = {
-  a: function(d) { return d3_time_weekdays[d.getDay()].substring(0, 3); },
-  A: function(d) { return d3_time_weekdays[d.getDay()]; },
-  b: function(d) { return d3_time_months[d.getMonth()].substring(0, 3); },
-  B: function(d) { return d3_time_months[d.getMonth()]; },
-  c: d3.time.format("%a %b %e %H:%M:%S %Y"),
-  d: function(d) { return d3_time_zfill2(d.getDate()); },
-  e: function(d) { return d3_time_sfill2(d.getDate()); },
-  H: function(d) { return d3_time_zfill2(d.getHours()); },
-  I: function(d) { return d3_time_zfill2(d.getHours() % 12 || 12); },
-  j: d3_time_dayOfYear,
-  m: function(d) { return d3_time_zfill2(d.getMonth() + 1); },
-  M: function(d) { return d3_time_zfill2(d.getMinutes()); },
-  p: function(d) { return d.getHours() >= 12 ? "PM" : "AM"; },
-  S: function(d) { return d3_time_zfill2(d.getSeconds()); },
-  U: d3_time_weekNumberSunday,
-  w: function(d) { return d.getDay(); },
-  W: d3_time_weekNumberMonday,
-  x: d3.time.format("%m/%d/%y"),
-  X: d3.time.format("%H:%M:%S"),
-  y: function(d) { return d3_time_zfill2(d.getFullYear() % 100); },
-  Y: function(d) { return d3_time_zfill4(d.getFullYear() % 10000); },
-  Z: d3_time_zone,
-  "%": function(d) { return "%"; }
-};
-
-var d3_time_parsers = {
-  a: d3_time_parseWeekdayAbbrev,
-  A: d3_time_parseWeekday,
-  b: d3_time_parseMonthAbbrev,
-  B: d3_time_parseMonth,
-  c: d3_time_parseLocaleFull,
-  d: d3_time_parseDay,
-  e: d3_time_parseDay,
-  H: d3_time_parseHour24,
-  I: d3_time_parseHour12,
-  // j: function(d, s, i) { /*TODO day of year [001,366] */ return i; },
-  m: d3_time_parseMonthNumber,
-  M: d3_time_parseMinutes,
-  p: d3_time_parseAmPm,
-  S: d3_time_parseSeconds,
-  // U: function(d, s, i) { /*TODO week number (sunday) [00,53] */ return i; },
-  // w: function(d, s, i) { /*TODO weekday [0,6] */ return i; },
-  // W: function(d, s, i) { /*TODO week number (monday) [00,53] */ return i; },
-  x: d3_time_parseLocaleDate,
-  X: d3_time_parseLocaleTime,
-  y: d3_time_parseYear,
-  Y: d3_time_parseFullYear
-  // ,
-  // Z: function(d, s, i) { /*TODO time zone */ return i; },
-  // "%": function(d, s, i) { /*TODO literal % */ return i; }
-};
-
-// Note: weekday is validated, but does not set the date.
-function d3_time_parseWeekdayAbbrev(date, string, i) {
-  return string.substring(i, i += 3).toLowerCase() in d3_time_weekdayAbbrevLookup ? i : -1;
-}
-
-var d3_time_weekdayAbbrevLookup = {
-  sun: 3,
-  mon: 3,
-  tue: 3,
-  wed: 3,
-  thu: 3,
-  fri: 3,
-  sat: 3
-};
-
-// Note: weekday is validated, but does not set the date.
-function d3_time_parseWeekday(date, string, i) {
-  d3_time_weekdayRe.lastIndex = 0;
-  var n = d3_time_weekdayRe.exec(string.substring(i, i + 10));
-  return n ? i += n[0].length : -1;
-}
-
-var d3_time_weekdayRe = /^(?:Sunday|Monday|Tuesday|Wednesday|Thursday|Friday|Saturday)/ig;
-
-var d3_time_weekdays = [
-  "Sunday",
-  "Monday",
-  "Tuesday",
-  "Wednesday",
-  "Thursday",
-  "Friday",
-  "Saturday"
-];
-
-function d3_time_parseMonthAbbrev(date, string, i) {
-  var n = d3_time_monthAbbrevLookup[string.substring(i, i += 3).toLowerCase()];
-  return n == null ? -1 : (date.setMonth(n), i);
-}
-
-var d3_time_monthAbbrevLookup = {
-  jan: 0,
-  feb: 1,
-  mar: 2,
-  apr: 3,
-  may: 4,
-  jun: 5,
-  jul: 6,
-  aug: 7,
-  sep: 8,
-  oct: 9,
-  nov: 10,
-  dec: 11
-};
-
-function d3_time_parseMonth(date, string, i) {
-  d3_time_monthRe.lastIndex = 0;
-  var n = d3_time_monthRe.exec(string.substring(i, i + 12));
-  return n ? (date.setMonth(d3_time_monthLookup[n[0].toLowerCase()]), i += n[0].length) : -1;
-}
-
-var d3_time_monthRe = /^(?:January|February|March|April|May|June|July|August|September|October|November|December)/ig;
-
-var d3_time_monthLookup = {
-  january: 0,
-  february: 1,
-  march: 2,
-  april: 3,
-  may: 4,
-  june: 5,
-  july: 6,
-  august: 7,
-  september: 8,
-  october: 9,
-  november: 10,
-  december: 11
-};
-
-var d3_time_months = [
-  "January",
-  "February",
-  "March",
-  "April",
-  "May",
-  "June",
-  "July",
-  "August",
-  "September",
-  "October",
-  "November",
-  "December"
-];
-
-function d3_time_parseLocaleFull(date, string, i) {
-  return d3_time_parse(date, d3_time_formats.c.toString(), string, i);
-}
-
-function d3_time_parseLocaleDate(date, string, i) {
-  return d3_time_parse(date, d3_time_formats.x.toString(), string, i);
-}
-
-function d3_time_parseLocaleTime(date, string, i) {
-  return d3_time_parse(date, d3_time_formats.X.toString(), string, i);
-}
-
-function d3_time_parseFullYear(date, string, i) {
-  d3_time_numberRe.lastIndex = 0;
-  var n = d3_time_numberRe.exec(string.substring(i, i + 4));
-  return n ? (date.setFullYear(n[0]), i += n[0].length) : -1;
-}
-
-function d3_time_parseYear(date, string, i) {
-  d3_time_numberRe.lastIndex = 0;
-  var n = d3_time_numberRe.exec(string.substring(i, i + 2));
-  return n ? (date.setFullYear(d3_time_century() + +n[0]), i += n[0].length) : -1;
-}
-
-function d3_time_century() {
-  return ~~(new Date().getFullYear() / 1000) * 1000;
-}
-
-function d3_time_parseMonthNumber(date, string, i) {
-  d3_time_numberRe.lastIndex = 0;
-  var n = d3_time_numberRe.exec(string.substring(i, i + 2));
-  return n ? (date.setMonth(n[0] - 1), i += n[0].length) : -1;
-}
-
-function d3_time_parseDay(date, string, i) {
-  d3_time_numberRe.lastIndex = 0;
-  var n = d3_time_numberRe.exec(string.substring(i, i + 2));
-  return n ? (date.setDate(+n[0]), i += n[0].length) : -1;
-}
-
-// Note: we don't validate that the hour is in the range [0,23].
-function d3_time_parseHour24(date, string, i) {
-  d3_time_numberRe.lastIndex = 0;
-  var n = d3_time_numberRe.exec(string.substring(i, i + 2));
-  return n ? (date.setHours(+n[0]), i += n[0].length) : -1;
-}
-
-// Note: we don't validate that the hour is in the range [1,12].
-function d3_time_parseHour12(date, string, i) {
-  date.hour12 = true;
-  return d3_time_parseHour24(date, string, i);
-}
-
-function d3_time_parseMinutes(date, string, i) {
-  d3_time_numberRe.lastIndex = 0;
-  var n = d3_time_numberRe.exec(string.substring(i, i + 2));
-  return n ? (date.setMinutes(+n[0]), i += n[0].length) : -1;
-}
-
-function d3_time_parseSeconds(date, string, i) {
-  d3_time_numberRe.lastIndex = 0;
-  var n = d3_time_numberRe.exec(string.substring(i, i + 2));
-  return n ? (date.setSeconds(+n[0]), i += n[0].length) : -1;
-}
-
-// Note: we don't look at the next directive.
-var d3_time_numberRe = /\s*\d+/;
-
-function d3_time_parseAmPm(date, string, i) {
-  var n = d3_time_amPmLookup[string.substring(i, i += 2).toLowerCase()];
-  return n == null ? -1 : (date.hour12pm = n, i);
-}
-
-var d3_time_amPmLookup = {
-  am: 0,
-  pm: 1
-};
-
-function d3_time_year(d) {
-  return new d3_time(d.getFullYear(), 0, 1);
-}
-
-function d3_time_dayOfYear(d) {
-  return d3_time_zfill3(1 + ~~((d - d3_time_year(d)) / 864e5));
-}
-
-function d3_time_weekNumberSunday(d) {
-  var d0 = d3_time_year(d);
-  return d3_time_zfill2(~~(((d - d0) / 864e5 + d0.getDay()) / 7));
-}
-
-function d3_time_weekNumberMonday(d) {
-  var d0 = d3_time_year(d);
-  return d3_time_zfill2(~~(((d - d0) / 864e5 + (d0.getDay() + 6) % 7) / 7));
-}
-
-// TODO table of time zone offset names?
-function d3_time_zone(d) {
-  var z = d.getTimezoneOffset(),
-      zs = z > 0 ? "-" : "+",
-      zh = ~~(Math.abs(z) / 60),
-      zm = Math.abs(z) % 60;
-  return zs + d3_time_zfill2(zh) + d3_time_zfill2(zm);
-}
-d3.time.format.utc = function(template) {
-  var local = d3.time.format(template);
-
-  function format(date) {
-    var utc = new d3_time_format_utc();
-    utc._ = date;
-    return local(utc);
-  }
-
-  format.parse = function(string) {
-    try {
-      d3_time = d3_time_format_utc;
-      var date = local.parse(string);
-      return date && date._;
-    } finally {
-      d3_time = Date;
-    }
-  };
-
-  format.toString = local.toString;
-
-  return format;
-};
-
-function d3_time_format_utc() {
-  this._ = new Date(Date.UTC.apply(this, arguments));
-}
-
-d3_time_format_utc.prototype = {
-  getDate: function() { return this._.getUTCDate(); },
-  getDay: function() { return this._.getUTCDay(); },
-  getFullYear: function() { return this._.getUTCFullYear(); },
-  getHours: function() { return this._.getUTCHours(); },
-  getMilliseconds: function() { return this._.getUTCMilliseconds(); },
-  getMinutes: function() { return this._.getUTCMinutes(); },
-  getMonth: function() { return this._.getUTCMonth(); },
-  getSeconds: function() { return this._.getUTCSeconds(); },
-  getTimezoneOffset: function() { return 0; },
-  valueOf: function() { return this._.getTime(); },
-  setDate: function(x) { this._.setUTCDate(x); },
-  setDay: function(x) { this._.setUTCDay(x); },
-  setFullYear: function(x) { this._.setUTCFullYear(x); },
-  setHours: function(x) { this._.setUTCHours(x); },
-  setMilliseconds: function(x) { this._.setUTCMilliseconds(x); },
-  setMinutes: function(x) { this._.setUTCMinutes(x); },
-  setMonth: function(x) { this._.setUTCMonth(x); },
-  setSeconds: function(x) { this._.setUTCSeconds(x); }
-};
-d3.time.format.iso = d3.time.format.utc("%Y-%m-%dT%H:%M:%SZ");
-function d3_time_range(floor, step, number) {
-  return function(t0, t1, dt) {
-    var time = floor(t0), times = [];
-    if (time < t0) step(time);
-    if (dt > 1) {
-      while (time < t1) {
-        var date = new Date(+time);
-        if (!(number(date) % dt)) times.push(date);
-        step(time);
-      }
-    } else {
-      while (time < t1) times.push(new Date(+time)), step(time);
-    }
-    return times;
-  };
-}
-d3.time.second = function(date) {
-  return new Date(~~(date / 1e3) * 1e3);
-};
-
-d3.time.second.utc = d3.time.second;
-d3.time.seconds = d3_time_range(d3.time.second, function(date) {
-  date.setTime(date.getTime() + 1e3);
-}, function(date) {
-  return date.getSeconds();
-});
-
-d3.time.seconds.utc = d3.time.seconds;
-d3.time.minute = function(date) {
-  return new Date(~~(date / 6e4) * 6e4);
-};
-
-d3.time.minute.utc = d3.time.minute;d3.time.minutes = d3_time_range(d3.time.minute, d3_time_minutesStep, function(date) {
-  return date.getMinutes();
-});
-
-d3.time.minutes.utc = d3_time_range(d3.time.minute, d3_time_minutesStep, function(date) {
-  return date.getUTCMinutes();
-});
-
-function d3_time_minutesStep(date) {
-  date.setTime(date.getTime() + 6e4); // assumes no leap seconds
-}
-d3.time.hour = function(date) {
-  var offset = date.getTimezoneOffset() / 60;
-  return new Date((~~(date / 36e5 - offset) + offset) * 36e5);
-};
-
-d3.time.hour.utc = function(date) {
-  return new Date(~~(date / 36e5) * 36e5);
-};
-d3.time.hours = d3_time_range(d3.time.hour, d3_time_hoursStep, function(date) {
-  return date.getHours();
-});
-
-d3.time.hours.utc = d3_time_range(d3.time.hour.utc, d3_time_hoursStep, function(date) {
-  return date.getUTCHours();
-});
-
-function d3_time_hoursStep(date) {
-  date.setTime(date.getTime() + 36e5);
-}
-d3.time.day = function(date) {
-  return new Date(date.getFullYear(), date.getMonth(), date.getDate());
-};
-
-d3.time.day.utc = function(date) {
-  return new Date(~~(date / 864e5) * 864e5);
-};
-d3.time.days = d3_time_range(d3.time.day, function(date) {
-  date.setDate(date.getDate() + 1);
-}, function(date) {
-  return date.getDate() - 1;
-});
-
-d3.time.days.utc = d3_time_range(d3.time.day.utc, function(date) {
-  date.setUTCDate(date.getUTCDate() + 1);
-}, function(date) {
-  return date.getUTCDate() - 1;
-});
-d3.time.week = function(date) {
-  (date = d3.time.day(date)).setDate(date.getDate() - date.getDay());
-  return date;
-};
-
-d3.time.week.utc = function(date) {
-  (date = d3.time.day.utc(date)).setUTCDate(date.getUTCDate() - date.getUTCDay());
-  return date;
-};
-d3.time.weeks = d3_time_range(d3.time.week, function(date) {
-  date.setDate(date.getDate() + 7);
-}, function(date) {
-  return ~~((date - new Date(date.getFullYear(), 0, 1)) / 6048e5);
-});
-
-d3.time.weeks.utc = d3_time_range(d3.time.week.utc, function(date) {
-  date.setUTCDate(date.getUTCDate() + 7);
-}, function(date) {
-  return ~~((date - Date.UTC(date.getUTCFullYear(), 0, 1)) / 6048e5);
-});
-d3.time.month = function(date) {
-  return new Date(date.getFullYear(), date.getMonth(), 1);
-};
-
-d3.time.month.utc = function(date) {
-  return new Date(Date.UTC(date.getUTCFullYear(), date.getUTCMonth(), 1));
-};
-d3.time.months = d3_time_range(d3.time.month, function(date) {
-  date.setMonth(date.getMonth() + 1);
-}, function(date) {
-  return date.getMonth();
-});
-
-d3.time.months.utc = d3_time_range(d3.time.month.utc, function(date) {
-  date.setUTCMonth(date.getUTCMonth() + 1);
-}, function(date) {
-  return date.getUTCMonth();
-});
-d3.time.year = function(date) {
-  return new Date(date.getFullYear(), 0, 1);
-};
-
-d3.time.year.utc = function(date) {
-  return new Date(Date.UTC(date.getUTCFullYear(), 0, 1));
-};
-d3.time.years = d3_time_range(d3.time.year, function(date) {
-  date.setFullYear(date.getFullYear() + 1);
-}, function(date) {
-  return date.getFullYear();
-});
-
-d3.time.years.utc = d3_time_range(d3.time.year.utc, function(date) {
-  date.setUTCFullYear(date.getUTCFullYear() + 1);
-}, function(date) {
-  return date.getUTCFullYear();
-});
-// TODO nice
-function d3_time_scale(linear, methods, format) {
-
-  function scale(x) {
-    return linear(x);
-  }
-
-  scale.invert = function(x) {
-    return d3_time_scaleDate(linear.invert(x));
-  };
-
-  scale.domain = function(x) {
-    if (!arguments.length) return linear.domain().map(d3_time_scaleDate);
-    linear.domain(x);
-    return scale;
-  };
-
-  scale.ticks = function(m, k) {
-    var extent = d3_time_scaleExtent(scale.domain());
-    if (typeof m !== "function") {
-      var span = extent[1] - extent[0],
-          target = span / m,
-          i = d3.bisect(d3_time_scaleSteps, target, 1, d3_time_scaleSteps.length - 1);
-      if (Math.log(target / d3_time_scaleSteps[i - 1]) < Math.log(d3_time_scaleSteps[i] / target)) --i;
-      m = methods[i];
-      k = m[1];
-      m = m[0];
-    }
-    return m(extent[0], extent[1], k);
-  };
-
-  scale.tickFormat = function() {
-    return format;
-  };
-
-  scale.copy = function() {
-    return d3_time_scale(linear.copy(), methods, format);
-  };
-
-  // TOOD expose d3_scale_linear_rebind?
-  scale.range = d3.rebind(scale, linear.range);
-  scale.rangeRound = d3.rebind(scale, linear.rangeRound);
-  scale.interpolate = d3.rebind(scale, linear.interpolate);
-  scale.clamp = d3.rebind(scale, linear.clamp);
-
-  return scale;
-}
-
-// TODO expose d3_scaleExtent?
-function d3_time_scaleExtent(domain) {
-  var start = domain[0], stop = domain[domain.length - 1];
-  return start < stop ? [start, stop] : [stop, start];
-}
-
-function d3_time_scaleDate(t) {
-  return new Date(t);
-}
-
-function d3_time_scaleFormat(formats) {
-  return function(date) {
-    var i = formats.length - 1, f = formats[i];
-    while (!f[1](date)) f = formats[--i];
-    return f[0](date);
-  };
-}
-
-var d3_time_scaleSteps = [
-  1e3,    // 1-second
-  5e3,    // 5-second
-  15e3,   // 15-second
-  3e4,    // 30-second
-  6e4,    // 1-minute
-  3e5,    // 5-minute
-  9e5,    // 15-minute
-  18e5,   // 30-minute
-  36e5,   // 1-hour
-  108e5,  // 3-hour
-  216e5,  // 6-hour
-  432e5,  // 12-hour
-  864e5,  // 1-day
-  1728e5, // 2-day
-  6048e5, // 1-week
-  1728e6, // 1-month
-  7776e6, // 3-month
-  31536e6 // 1-year
-];
-
-var d3_time_scaleLocalMethods = [
-  [d3.time.seconds, 1],
-  [d3.time.seconds, 5],
-  [d3.time.seconds, 15],
-  [d3.time.seconds, 30],
-  [d3.time.minutes, 1],
-  [d3.time.minutes, 5],
-  [d3.time.minutes, 15],
-  [d3.time.minutes, 30],
-  [d3.time.hours, 1],
-  [d3.time.hours, 3],
-  [d3.time.hours, 6],
-  [d3.time.hours, 12],
-  [d3.time.days, 1],
-  [d3.time.days, 2],
-  [d3.time.weeks, 1],
-  [d3.time.months, 1],
-  [d3.time.months, 3],
-  [d3.time.years, 1]
-];
-
-var d3_time_scaleLocalFormats = [
-  [d3.time.format("%Y"), function(d) { return true; }],
-  [d3.time.format("%B"), function(d) { return d.getMonth(); }],
-  [d3.time.format("%b %d"), function(d) { return d.getDate() != 1; }],
-  [d3.time.format("%a %d"), function(d) { return d.getDay() && d.getDate() != 1; }],
-  [d3.time.format("%I %p"), function(d) { return d.getHours(); }],
-  [d3.time.format("%I:%M"), function(d) { return d.getMinutes(); }],
-  [d3.time.format(":%S"), function(d) { return d.getSeconds() || d.getMilliseconds(); }]
-];
-
-var d3_time_scaleLocalFormat = d3_time_scaleFormat(d3_time_scaleLocalFormats);
-
-d3.time.scale = function() {
-  return d3_time_scale(d3.scale.linear(), d3_time_scaleLocalMethods, d3_time_scaleLocalFormat);
-};
-var d3_time_scaleUTCMethods = [
-  [d3.time.seconds.utc, 1],
-  [d3.time.seconds.utc, 5],
-  [d3.time.seconds.utc, 15],
-  [d3.time.seconds.utc, 30],
-  [d3.time.minutes.utc, 1],
-  [d3.time.minutes.utc, 5],
-  [d3.time.minutes.utc, 15],
-  [d3.time.minutes.utc, 30],
-  [d3.time.hours.utc, 1],
-  [d3.time.hours.utc, 3],
-  [d3.time.hours.utc, 6],
-  [d3.time.hours.utc, 12],
-  [d3.time.days.utc, 1],
-  [d3.time.days.utc, 2],
-  [d3.time.weeks.utc, 1],
-  [d3.time.months.utc, 1],
-  [d3.time.months.utc, 3],
-  [d3.time.years.utc, 1]
-];
-
-var d3_time_scaleUTCFormats = [
-  [d3.time.format.utc("%Y"), function(d) { return true; }],
-  [d3.time.format.utc("%B"), function(d) { return d.getUTCMonth(); }],
-  [d3.time.format.utc("%b %d"), function(d) { return d.getUTCDate() != 1; }],
-  [d3.time.format.utc("%a %d"), function(d) { return d.getUTCDay() && d.getUTCDate() != 1; }],
-  [d3.time.format.utc("%I %p"), function(d) { return d.getUTCHours(); }],
-  [d3.time.format.utc("%I:%M"), function(d) { return d.getUTCMinutes(); }],
-  [d3.time.format.utc(":%S"), function(d) { return d.getUTCSeconds() || d.getUTCMilliseconds(); }]
-];
-
-var d3_time_scaleUTCFormat = d3_time_scaleFormat(d3_time_scaleUTCFormats);
-
-d3.time.scale.utc = function() {
-  return d3_time_scale(d3.scale.linear(), d3_time_scaleUTCMethods, d3_time_scaleUTCFormat);
-};
-})();
diff --git a/vendor/d3/d3.time.min.js b/vendor/d3/d3.time.min.js
deleted file mode 100644
index b4b0401..0000000
--- a/vendor/d3/d3.time.min.js
+++ /dev/null
@@ -1 +0,0 @@
-(function(){function U(a){return function(b){var c=a.length-1,d=a[c];while(!d[1](b))d=a[--c];return d[0](b)}}function T(a){return new Date(a)}function S(a){var b=a[0],c=a[a.length-1];return b<c?[b,c]:[c,b]}function R(a,b,c){function d(b){return a(b)}d.invert=function(b){return T(a.invert(b))},d.domain=function(b){if(!arguments.length)return a.domain().map(T);a.domain(b);return d},d.ticks=function(a,c){var e=S(d.domain());if(typeof a!="function"){var f=e[1]-e[0],g=f/a,h=d3.bisect(V,g,1,V.length-1);Math.log(g/V[h-1])<Math.log(V[h]/g)&&--h,a=b[h],c=a[1],a=a[0]}return a(e[0],e[1],c)},d.tickFormat=function(){return c},d.copy=function(){return R(a.copy(),b,c)},d.range=d3.rebind(d,a.range),d.rangeRound=d3.rebind(d,a.rangeRound),d.interpolate=d3.rebind(d,a.interpolate),d.clamp=d3.rebind(d,a.clamp);return d}function Q(a){a.setTime(a.getTime()+36e5)}function P(a){a.setTime(a.getTime()+6e4)}function O(a,b,c){return function(d,e,f){var g=a(d),h=[];g<d&&b(g);if(f>1)while(g<e){var i=new Date(+g);c(i)%f||h.push(i),b(g)}else while(g<e)h.push(new Date(+g)),b(g);return h}}function N(){this._=new Date(Date.UTC.apply(this,arguments))}function M(a){var b=a.getTimezoneOffset(),d=b>0?"-":"+",e=~~(Math.abs(b)/60),f=Math.abs(b)%60;return d+c(e)+c(f)}function L(a){var b=I(a);return c(~~(((a-b)/864e5+(b.getDay()+6)%7)/7))}function K(a){var b=I(a);return c(~~(((a-b)/864e5+b.getDay())/7))}function J(a){return d(1+~~((a-I(a))/864e5))}function I(b){return new a(b.getFullYear(),0,1)}function G(a,b,c){var d=H[b.substring(c,c+=2).toLowerCase()];return d==null?-1:(a.hour12pm=d,c)}function E(a,b,c){F.lastIndex=0;var d=F.exec(b.substring(c,c+2));return d?(a.setSeconds(+d[0]),c+=d[0].length):-1}function D(a,b,c){F.lastIndex=0;var d=F.exec(b.substring(c,c+2));return d?(a.setMinutes(+d[0]),c+=d[0].length):-1}function C(a,b,c){a.hour12=!0;return B(a,b,c)}function B(a,b,c){F.lastIndex=0;var d=F.exec(b.substring(c,c+2));return d?(a.setHours(+d[0]),c+=d[0].length):-1}function A(a,b,c){F.lastIndex=0;var d=F.exec(b.substring(c,c+2));return d?(a.setDate(+d[0]),c+=d[0].length):-1}function z(a,b,c){F.lastIndex=0;var d=F.exec(b.substring(c,c+2));return d?(a.setMonth(d[0]-1),c+=d[0].length):-1}function y(){return~~((new Date).getFullYear()/1e3)*1e3}function x(a,b,c){F.lastIndex=0;var d=F.exec(b.substring(c,c+2));return d?(a.setFullYear(y()+ +d[0]),c+=d[0].length):-1}function w(a,b,c){F.lastIndex=0;var d=F.exec(b.substring(c,c+4));return d?(a.setFullYear(d[0]),c+=d[0].length):-1}function v(a,c,d){return b(a,g.X.toString(),c,d)}function u(a,c,d){return b(a,g.x.toString(),c,d)}function t(a,c,d){return b(a,g.c.toString(),c,d)}function p(a,b,c){q.lastIndex=0;var d=q.exec(b.substring(c,c+12));return d?(a.setMonth(r[d[0].toLowerCase()]),c+=d[0].length):-1}function n(a,b,c){var d=o[b.substring(c,c+=3).toLowerCase()];return d==null?-1:(a.setMonth(d),c)}function k(a,b,c){l.lastIndex=0;var d=l.exec(b.substring(c,c+10));return d?c+=d[0].length:-1}function i(a,b,c){return b.substring(c,c+=3).toLowerCase()in j?c:-1}function b(a,b,c,d){var e,f,g=0,i=b.length,j=c.length;while(g<i){if(d>=j)return-1;e=b.charCodeAt(g++);if(e==37){f=h[b.charAt(g++)];if(!f||(d=f(a,c,d))<0)return-1}else if(e!=c.charCodeAt(d++))return-1}return d}d3.time={};var a=Date;d3.time.format=function(c){function e(a){var b=[],e=-1,f=0,h,i;while(++e<d)c.charCodeAt(e)==37&&(b.push(c.substring(f,e),(i=g[h=c.charAt(++e)])?i(a):h),f=e+1);b.push(c.substring(f,e));return b.join("")}var d=c.length;e.parse=function(d){var e=new a(1900,0,1),f=b(e,c,d,0);if(f!=d.length)return null;if(e.hour12){var g=e.getHours()%12;e.setHours(e.hour12pm?g+12:g)}delete e.hour12,delete e.hour12pm;return e},e.toString=function(){return c};return e};var c=d3.format("02d"),d=d3.format("03d"),e=d3.format("04d"),f=d3.format("2d"),g={a:function(a){return m[a.getDay()].substring(0,3)},A:function(a){return m[a.getDay()]},b:function(a){return s[a.getMonth()].substring(0,3)},B:function(a){return s[a.getMonth()]},c:d3.time.format("%a %b %e %H:%M:%S %Y"),d:function(a){return c(a.getDate())},e:function(a){return f(a.getDate())},H:function(a){return c(a.getHours())},I:function(a){return c(a.getHours()%12||12)},j:J,m:function(a){return c(a.getMonth()+1)},M:function(a){return c(a.getMinutes())},p:function(a){return a.getHours()>=12?"PM":"AM"},S:function(a){return c(a.getSeconds())},U:K,w:function(a){return a.getDay()},W:L,x:d3.time.format("%m/%d/%y"),X:d3.time.format("%H:%M:%S"),y:function(a){return c(a.getFullYear()%100)},Y:function(a){return e(a.getFullYear()%1e4)},Z:M,"%":function(a){return"%"}},h={a:i,A:k,b:n,B:p,c:t,d:A,e:A,H:B,I:C,m:z,M:D,p:G,S:E,x:u,X:v,y:x,Y:w},j={sun:3,mon:3,tue:3,wed:3,thu:3,fri:3,sat:3},l=/^(?:Sunday|Monday|Tuesday|Wednesday|Thursday|Friday|Saturday)/ig,m=["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"],o={jan:0,feb:1,mar:2,apr:3,may:4,jun:5,jul:6,aug:7,sep:8,oct:9,nov:10,dec:11},q=/^(?:January|February|March|April|May|June|July|August|September|October|November|December)/ig,r={january:0,february:1,march:2,april:3,may:4,june:5,july:6,august:7,september:8,october:9,november:10,december:11},s=["January","February","March","April","May","June","July","August","September","October","November","December"],F=/\s*\d+/,H={am:0,pm:1};d3.time.format.utc=function(b){function d(a){var b=new N;b._=a;return c(b)}var c=d3.time.format(b);d.parse=function(b){try{a=N;var d=c.parse(b);return d&&d._}finally{a=Date}},d.toString=c.toString;return d},N.prototype={getDate:function(){return this._.getUTCDate()},getDay:function(){return this._.getUTCDay()},getFullYear:function(){return this._.getUTCFullYear()},getHours:function(){return this._.getUTCHours()},getMilliseconds:function(){return this._.getUTCMilliseconds()},getMinutes:function(){return this._.getUTCMinutes()},getMonth:function(){return this._.getUTCMonth()},getSeconds:function(){return this._.getUTCSeconds()},getTimezoneOffset:function(){return 0},valueOf:function(){return this._.getTime()},setDate:function(a){this._.setUTCDate(a)},setDay:function(a){this._.setUTCDay(a)},setFullYear:function(a){this._.setUTCFullYear(a)},setHours:function(a){this._.setUTCHours(a)},setMilliseconds:function(a){this._.setUTCMilliseconds(a)},setMinutes:function(a){this._.setUTCMinutes(a)},setMonth:function(a){this._.setUTCMonth(a)},setSeconds:function(a){this._.setUTCSeconds(a)}},d3.time.format.iso=d3.time.format.utc("%Y-%m-%dT%H:%M:%SZ"),d3.time.second=function(a){return new Date(~~(a/1e3)*1e3)},d3.time.second.utc=d3.time.second,d3.time.seconds=O(d3.time.second,function(a){a.setTime(a.getTime()+1e3)},function(a){return a.getSeconds()}),d3.time.seconds.utc=d3.time.seconds,d3.time.minute=function(a){return new Date(~~(a/6e4)*6e4)},d3.time.minute.utc=d3.time.minute,d3.time.minutes=O(d3.time.minute,P,function(a){return a.getMinutes()}),d3.time.minutes.utc=O(d3.time.minute,P,function(a){return a.getUTCMinutes()}),d3.time.hour=function(a){var b=a.getTimezoneOffset()/60;return new Date((~~(a/36e5-b)+b)*36e5)},d3.time.hour.utc=function(a){return new Date(~~(a/36e5)*36e5)},d3.time.hours=O(d3.time.hour,Q,function(a){return a.getHours()}),d3.time.hours.utc=O(d3.time.hour.utc,Q,function(a){return a.getUTCHours()}),d3.time.day=function(a){return new Date(a.getFullYear(),a.getMonth(),a.getDate())},d3.time.day.utc=function(a){return new Date(~~(a/864e5)*864e5)},d3.time.days=O(d3.time.day,function(a){a.setDate(a.getDate()+1)},function(a){return a.getDate()-1}),d3.time.days.utc=O(d3.time.day.utc,function(a){a.setUTCDate(a.getUTCDate()+1)},function(a){return a.getUTCDate()-1}),d3.time.week=function(a){(a=d3.time.day(a)).setDate(a.getDate()-a.getDay());return a},d3.time.week.utc=function(a){(a=d3.time.day.utc(a)).setUTCDate(a.getUTCDate()-a.getUTCDay());return a},d3.time.weeks=O(d3.time.week,function(a){a.setDate(a.getDate()+7)},function(a){return~~((a-new Date(a.getFullYear(),0,1))/6048e5)}),d3.time.weeks.utc=O(d3.time.week.utc,function(a){a.setUTCDate(a.getUTCDate()+7)},function(a){return~~((a-Date.UTC(a.getUTCFullYear(),0,1))/6048e5)}),d3.time.month=function(a){return new Date(a.getFullYear(),a.getMonth(),1)},d3.time.month.utc=function(a){return new Date(Date.UTC(a.getUTCFullYear(),a.getUTCMonth(),1))},d3.time.months=O(d3.time.month,function(a){a.setMonth(a.getMonth()+1)},function(a){return a.getMonth()}),d3.time.months.utc=O(d3.time.month.utc,function(a){a.setUTCMonth(a.getUTCMonth()+1)},function(a){return a.getUTCMonth()}),d3.time.year=function(a){return new Date(a.getFullYear(),0,1)},d3.time.year.utc=function(a){return new Date(Date.UTC(a.getUTCFullYear(),0,1))},d3.time.years=O(d3.time.year,function(a){a.setFullYear(a.getFullYear()+1)},function(a){return a.getFullYear()}),d3.time.years.utc=O(d3.time.year.utc,function(a){a.setUTCFullYear(a.getUTCFullYear()+1)},function(a){return a.getUTCFullYear()});var V=[1e3,5e3,15e3,3e4,6e4,3e5,9e5,18e5,36e5,108e5,216e5,432e5,864e5,1728e5,6048e5,1728e6,7776e6,31536e6],W=[[d3.time.seconds,1],[d3.time.seconds,5],[d3.time.seconds,15],[d3.time.seconds,30],[d3.time.minutes,1],[d3.time.minutes,5],[d3.time.minutes,15],[d3.time.minutes,30],[d3.time.hours,1],[d3.time.hours,3],[d3.time.hours,6],[d3.time.hours,12],[d3.time.days,1],[d3.time.days,2],[d3.time.weeks,1],[d3.time.months,1],[d3.time.months,3],[d3.time.years,1]],X=[[d3.time.format("%Y"),function(a){return!0}],[d3.time.format("%B"),function(a){return a.getMonth()}],[d3.time.format("%b %d"),function(a){return a.getDate()!=1}],[d3.time.format("%a %d"),function(a){return a.getDay()&&a.getDate()!=1}],[d3.time.format("%I %p"),function(a){return a.getHours()}],[d3.time.format("%I:%M"),function(a){return a.getMinutes()}],[d3.time.format(":%S"),function(a){return a.getSeconds()||a.getMilliseconds()}]],Y=U(X);d3.time.scale=function(){return R(d3.scale.linear(),W,Y)};var Z=[[d3.time.seconds.utc,1],[d3.time.seconds.utc,5],[d3.time.seconds.utc,15],[d3.time.seconds.utc,30],[d3.time.minutes.utc,1],[d3.time.minutes.utc,5],[d3.time.minutes.utc,15],[d3.time.minutes.utc,30],[d3.time.hours.utc,1],[d3.time.hours.utc,3],[d3.time.hours.utc,6],[d3.time.hours.utc,12],[d3.time.days.utc,1],[d3.time.days.utc,2],[d3.time.weeks.utc,1],[d3.time.months.utc,1],[d3.time.months.utc,3],[d3.time.years.utc,1]],$=[[d3.time.format.utc("%Y"),function(a){return!0}],[d3.time.format.utc("%B"),function(a){return a.getUTCMonth()}],[d3.time.format.utc("%b %d"),function(a){return a.getUTCDate()!=1}],[d3.time.format.utc("%a %d"),function(a){return a.getUTCDay()&&a.getUTCDate()!=1}],[d3.time.format.utc("%I %p"),function(a){return a.getUTCHours()}],[d3.time.format.utc("%I:%M"),function(a){return a.getUTCMinutes()}],[d3.time.format.utc(":%S"),function(a){return a.getUTCSeconds()||a.getUTCMilliseconds()}]],_=U($);d3.time.scale.utc=function(){return R(d3.scale.linear(),Z,_)}})()
\ No newline at end of file
diff --git a/vendor/d3/package.json b/vendor/d3/package.json
deleted file mode 100644
index c6fce87..0000000
--- a/vendor/d3/package.json
+++ /dev/null
@@ -1,27 +0,0 @@
-{
-  "name": "d3",
-  "version": "2.3.2",
-  "description": "A small, free JavaScript library for manipulating documents based on data.",
-  "keywords": [
-    "dom",
-    "w3c",
-    "visualization",
-    "svg",
-    "animation",
-    "canvas"
-  ],
-  "homepage": "http://mbostock.github.com/d3/",
-  "author": {
-    "name": "Mike Bostock",
-    "url": "http://bost.ocks.org/mike"
-  },
-  "repository": {
-    "type": "git",
-    "url": "http://github.com/mbostock/d3.git"
-  },
-  "dependencies": {
-    "uglify-js": "1.0.6",
-    "jsdom": "0.2.3",
-    "vows": "0.5.10"
-  }
-}