Added a missing dispose check in AlphaForm.
Reload pony in editor after changing anything in the grid views as the Pony class has an internal cache that cannot account for changes in its parent PonyBase object.
Added some extra checks for Win32 errors in AlphaForm.
Fix a bug in AnimatedImageIndexer where the pause/play state would get mixed up once UseTimingsFrom was called.
Put image comparison in GifAlphaForm inside some scrollbars so that the whole image can be seen if required.