Added trees and scaffolding for test runner plugin

plugins/c9.ide.tree/style.css

@@ -200,7 +200,7 @@
     -webkit-flex: 1;
 }
 
-.filetree .heading{
+.ace_tree .heading{
     font-variant: small-caps;
     font-size: 16px;
     margin-top: 0px;
@@ -209,9 +209,9 @@
     text-shadow: @tree-heading-text-shadow;
     line-height: 0;
 }
-.filetree .heading .toggler{
+.ace_tree .heading .toggler{
-    display : none;
+    display : none !important;
 }
-.filetree .heading .filetree-icon{
+.ace_tree .heading .ace_tree-icon{
-    display : none;
+    display : none !important;
 }

plugins/c9.ide.ui/widgets.datagrid.js

@@ -65,6 +65,9 @@ define(function(require, exports, module) {
                 }
             });
             
+            if (!baseclass)
+                plugin.load(null, options.baseName || "datagrid");
+            
             return plugin;
         }
         

plugins/c9.ide.ui/widgets.list.js

@@ -79,6 +79,7 @@ define(function(require, exports, module) {
                 redirectEvents = {
                     scroll: model,
                     scrollbarVisibilityChanged: acetree.renderer,
+                    afterRender: acetree.renderer,
                     resize: acetree.renderer,
                     expand: model,
                     collapse: model,
@@ -454,6 +455,10 @@ define(function(require, exports, module) {
                      * @event afterRename Fires 
                      */
                     "afterRename",
+                    /**
+                     * @event afterRender Fires 
+                     */
+                    "afterRender",
                     /**
                      * @event check Fires 
                      */
@@ -598,7 +603,8 @@ define(function(require, exports, module) {
                 }
             });
             
-            plugin.load(null, options.baseName || "list");
+            if (!baseclass)
+                plugin.load(null, options.baseName || "list");
             
             return plugin;
         }

plugins/c9.ide.ui/widgets.tree.js

@@ -102,6 +102,9 @@ define(function(require, exports, module) {
                 }
             });
             
+            if (!baseclass)
+                plugin.load(null, options.baseName || "tree");
+            
             return plugin;
         }