define USE_BULLET_COLLISIONS in the Xcode project settings

this way @JimAnkrom won’t have to change that file every time he pulls
changes
Commit project updates
Paddle hit position influences ball return angle (Pong-like)
Merge branch 'master' of https://github.com/VideoBleep/bleepout
Fix cartesianToSpherical so modifier spawn locations are correct (fixes #59)
Make modifiers despawn at horizon
Implement modifier destruction at horizon with an event so other things can use it
Fixed bug in the modifier destruction code
Merge branch 'master' of https://github.com/VideoBleep/bleepout.git
Master -> playercontrol