add some touch support

- fire touch(start|move|end) events after adding clinetX/Y
- use touch events in video and timeline widgets
- use touchstart to select item in ArrayEditable

source/UI/js/Video/LargeVideoTimeline.js

@@ -53,7 +53,10 @@ Ox.LargeVideoTimeline = function(options, self) {
             anyclick: click,
             dragstart: dragstart,
             drag: drag,
-            dragend: dragend
+            dragend: dragend,
+            touchstart: dragstart,
+            touchmove: drag,
+            touchend: dragend
         });
     }