Minor fixes.
AttachmentLoader fixes
Merge pull request #228 from moberghammer/master

AttachmentLoader fixes
Tabs, never spaces.
Meshes, FFD and skinning for spine-lua.
Missig function.
Fixes.
spine-csharp should not be committed under spine-tk2d!
Fixed path lookup.

closes #229
Don't clear VAO on each PolygonBatch flush.
Missing text file.
Fixed pooling polygon FloatArrays.
Updated to 3.1 final.
Fixed switch warning.
Merge pull request #227 from pharan/bonecomponent

Fixed BoneComponent Z-positioning.
Reload button and default mix time.