Moved firing complete event to apply. Fixed missing keys on last frame when animation changes.
Fixed turbulenz example.

closes #143
Merge remote-tracking branch 'upstream/master'
Fixed events not firing sometimes.

http://www.esotericsoftware.com/forum/viewtopic.php?f=9&t=1462
Fixed spine-csharp.
Made delta time easier to customize.
Merge remote-tracking branch 'upstream/master'