spine-as3 keyable draw order, events, and new AnimationState.
Fixed clearing tracks in event callbacks.
Fixed file loading for XNA on Windows Phone 7.
Merge pull request #135 from Liquidoodle/master

Fixed file loading for XNA on Windows Phone 7.
Fixed add/setAnimation in event callback.

closes #137
Merge branch 'origin/master'
Comments.
Renamed spBoundingPolygon -> spPolygon.
Bounding boxes for spine-as3.
Javadocs
Clean up.
spine-js: keyable draw order, events, bounding boxes.
spine-corona refactoring, easier to use Corona image sheets.
spine-lua: keyable draw order, events, new AnimationState.
spine-lua: bounding boxes.
Fixed for C89.

closes #138
closes #140
Added podspec.
Merge remote-tracking branch 'upstream/master'