Frontend] More refining of collapsing treeview

open #90
Create and Search controls now properly change
to mini-tabs when treeview is collapsed;
Mods to .create-btn to use :before for symbol instead of span;
 TO-DO: why does mct-device alter the order of items in the rendered
 markup?

platform/commonUI/browse/res/templates/create/create-button.html

@@ -21,7 +21,6 @@
 -->
 <div class="menu-element wrapper" ng-controller="ClickAwayController as createController">
     <div class="s-menu-btn major create-btn" ng-click="createController.toggle()">
-		<span class="ui-symbol icon type-icon">&#x2b;</span>
 		<span class="title-label">Create</span>
     </div>
     <div class="menu super-menu" ng-show="createController.isActive()">