Unbind VAO.
Removed unnecessary cast, property access.
Clean up.

Setting Attachment clears vertices count.
Fixed double free.
Fixed leak.
Fixed zero bone scale.
Minor changes.
Meshes, FFd and skinning for spine-as3.
Brings spine-starling up to date with spine-as3.

No mesh rendering yet.
Better example, no PMA.
Use getDisplayedOpacity.
Updated boundingBox.
boundingBox -> getBoundingBox.
Meshes, FFD and skinning for spine-js.
Support TK2D PNG atlases.
Various fixes.
Fixed BoneComponent Z-positioning.
New checkboxes to customize its behavior.
SkeletonRenderer property to safely reattach to a different SkeletonRenderer.
Minor fixes.
AttachmentLoader fixes
Merge pull request #228 from moberghammer/master

AttachmentLoader fixes