New Spriter 2 Alpha Build - Various Bug Fixes

[h2]0.0.0.28[/h2]

[h2]Change Log[/h2]
Bug Fixes

Fixed multiple bugs where certain singular actions required multiple undos and redos
Fixed multiple bugs where undoing or redoing certain actions would leave the program in an unstable/unpredictable state
Fixed multiple bugs where certain undoed actions couldn't be redone

Known Issues

Meshes above a certain number of verts cause pin deformer to fail and leave the program in an unstable state
Undo and Redo don't always function correctly with the new features
Visual bug when dragging out new images. Sometimes image disappears momentarily
Double entries for images in z-order
Changes to z-order in rigging mode not reflected in animation
Occasional visual glitches while editing animations
Save and Load not working reliably in all situations
Images saved from certain image editors will acquire artifacts when they have antialiased edges where the alpha isn't fully opaque or transparent. These issues aren't exclusive to Spriter 2 and will affect any game engine that doesn't preprocess them. These pre-processing functions will be introduced in a future version, and can be ignored for now.
Dragging out more than one of the same image doesn't function correctly.