Second approach for drag handler repositioning - upon wrapper mouseover event.
Function positionDragHandler moved to widget#updateDragHandlerPosition.
Changed trigger event for drag handler reposition to mouseenter. Changed drag handler default css properties.
Added drag handler position cache, and added snapshot locking.
Added comment about drag handler workaround.
Changed object comparing method.
Use setStyles instead of double setStyle.
Don't use loop to compare two values.
Value is used only once - don't declare it.
Reposition drag handler on widget#data.
Add listeners repositioning drag handler also when reinitializing widget.
Changelog entry.
Merge branch 't/11177d'