[#318] Use config for setting locales…

…and ensure we set locale *after* config is fully loaded.

lib/i18n.js

@@ -1,13 +1,14 @@
 var i18n = require('i18n-abide')
   , fs = require('fs')
+  , config = require('./config')
   , locales
   , _ = require('underscore')
   ;
 
 module.exports = {
   locales: function() {
     locales = locales ||
-      _.without(fs.readdirSync(__dirname + '/../locale'), 'templates');
+      config.get('locales');
 
     return locales;
   },
@@ -16,7 +17,7 @@ module.exports = {
 
     app.use(i18n.abide({
       supported_languages: locales,
-      default_lang: 'en',
+      default_lang: _.first(locales),
       translation_directory: 'locale'
     }));
   }

run.js

@@ -1,8 +1,7 @@
 var model = require('./lib/model').OpenDataCensus
-  , app = require('./app').app
   , census = require('./routes/census')
   , config = require('./lib/config')
-  ; 
+  ;
 
 // Booting up
 // ========================================================
@@ -15,6 +14,9 @@ model.load(function(err) {
     console.error('Failed to load dataset info');
     throw err;
   }
+
+  app = require('./app').app
+
   // Passport Auth Stuff (Facebook etc)
   // set up here rather than app.js as must be after config load to
   // get site_url