Fixes problem with IK classes not found

Just manually added the files to the solution. Fixes #295
Merge pull request #306 from Fenrisul/master

[Unity] Misc Importer improvements and Platformer Example
spine-as3, fixed IK constraint timeline mix.
Merge remote-tracking branch 'origin/master'
Merge pull request #296 from nikibobi/fix-295

Fixes problem with IK classes not found
Docs
Merge remote-tracking branch 'origin/master'
Fixed FfdTimeline for spine-c.
Merge pull request #307 from Fenrisul/master

[Unity Bugfix] Fixed auto 2048x2048 import
Fixed long->int warnings.
Formatting.
Added getter for skinName.
Removed OSX project.
Added IK constraint files to iOS project.
Fixed color blending.
Fixed binary format when there is no default skin.
Clean up.
Changed binary format to use index for IK constraint timelines.
Renamed parameter.
spine-libgdx, added flip timelines.