[Mobile] Sanding of mobile styles, in progress

open #74
CSS and markup changes for mobile,
particularly on grid-item;
Mod to behavior in tree for mobile nav:
leaf node grid-item click now navs to item;
Fixed info-button to work properly with mod to
infoButtonGesture.js;

platform/commonUI/inspect/res/templates/info-button.html

@@ -21,6 +21,5 @@
 -->
 
 <!--The icon for the info button appearing in a grid item (list in folder)-->
-<div>
-    <a class='ui-symbol icon mobile-info'>i</a>
-</div>
+<a class='ui-symbol icon mobile-info'>&#xe608;</a>
+