added template cacher param to the renderer signature, and before/aft…

…er render event arguments.

Updated the default mustache renderer to work with the new signature.

lib/view.js

@@ -57,6 +57,16 @@ ViewEngine.prototype.cacheView = function(path) {
   }.bind(this)); 
 };
 
+/**
+ * @api private
+ */
+ViewEngine.prototype.getCacher = function(path) {
+  var self = this;
+  return function(val) {
+    self.viewCache[path] = val;
+  }
+}
+
 ViewEngine.prototype.respond = function(view, opts) {
   opts = opts || {};
 
@@ -88,8 +98,9 @@ ViewEngine.prototype.render = function(view, opts) {
   layout = layout === true ? 'layout' + ext : layout;
 
   return when(this.viewCache[viewPath] || this.cacheView(viewPath), 
-    function success(str) {
+    function success(template) {
       var renderedView
+        , cacher
         , jsName = setting('shared js name') || 'javascript'
         , namespace = setting('shared js namespace') || 'bogart';
 
@@ -115,11 +126,12 @@ ViewEngine.prototype.render = function(view, opts) {
         opts._renderedShared = true;
       }
 
-      self.emit('beforeRender', self, opts, str);
-
-      renderedView = renderer(str, opts, self);
+      self.emit('beforeRender', self, opts, template, cacher);
+
+      cacher = self.getCacher(viewPath);
+      renderedView = renderer(template, opts, cacher, self);
 
-      self.emit('afterRender', self, opts, str);
+      self.emit('afterRender', self, opts, template, cacher);
 
       return when(renderedView, function(renderedView) {
         if (layout) {
@@ -208,7 +220,7 @@ exports.viewEngine.engine = function(engineName) {
   return engines[engineName];
 };
 
-exports.viewEngine.addEngine('mustache', function(str, opts, viewEngine) {
+exports.viewEngine.addEngine('mustache', function(str, opts, cache, viewEngine) {
   var partialPromises = []
     , partials = {}
     , viewPath;