Do not add Drawable2D to Octree, make 2D performance faster.
Fix ParticleEmitter2D update.
Merge branch 'make-2d-faster'
Travis CI: API documentation update at 2014-12-16 13:04:56 UTC.
[ci package]
Fix ObjectAnimation example in docs.
Remove Drawable2D in destruct function, add root node for TileMap2D.
Fix autoload paths not appending the executable base path consistently.
Merge remote-tracking branch 'upstream/master'