Merge branch 'timob-11896' into timob-10723
[TIMOB-10723] Fixed a bug where adding a view to a scrollable view "locks" the scrollable view
[TIMOB-11997] Added padding to table view rows
[TIMOB-11997] Code cleanup
[TIMOB-12067] Replaced the old kinetic scrolling code with the new prototype code.
[TIMOB-11458] iOS: Accessibility: hide TiUIWindow when another window opens on top; send accessibility notification about screen update
[TIMOB-12067] Rewrote the animation mechanism for scrollable view and generally cleaned up code
[TIMOB-10464] Implemented new bubbling event architecture
[TIMOB-10464] Updated events to make sure that x and y are updated along the chain
[TIMOB-11623] iOS: Remove outdated code that caused animation artifacts
[TIMOB-10464] Moved gestures to work on body and apply backwards
[TIMOB-10464] Code cleanup
[TIMOB-10320] iOS: improved JS exception logging when thrown from Objective-C
[TIMOB-12067] Small bug fixes
TIDOC-945 Add ActionBar example.

Also added missing property.
[TIMOB-10464] Readded dragging since we still need it (for now)
[TIMOB-10464] Reworked dragging to use the new arch
[TIDOC-898] Add warning not to add video player in scroll view
[TIMOB-11181] Expose gradientLayer readonly property
[TIMOB-11181] Animate gradientLayer on reposition