Added changes made during GlobalGameJam2014
Updated entity : special case for event methods
Cleaned ggj14 code
Updated bounding sample
Added isometric sample
Updated component sprite batch
Updated component sprite
Updated isometric sample
Updated engine and isometric sample
Updated entity on error
Fixed sprite batch
Added component circle
Fixed components
Added flappy bird like sample
Updated crayybird sample
Update physic component
Updated crappybird sample
Updated crappy bird sample
Updated engine
Updated ENGINE : Camera per render world