Move PhysicsImpl constants to #defines
Added player message constants, and integrated ofxBullet into VS project
Fixed Geometry.cpp, and current vcxproj
cleaning up the event code, adding more explicit attach/detach

this doesn’t fix #53, but it’s getting there
Merge branch 'master' into round-lifecycle
cleaned up the collision event code, fixed #53

the static collision event wasn’t being cleaned out after a round was
destroyed and recreated
Merge branch 'master' into round-lifecycle
Merge branch 'round-lifecycle'
Fixed timing of round start messages (fixes #55)
implemented a more general purpose animation system (closes #57)

It's no longer dependent on RendererExtras, and makes the TimedAction
features available for other (non-animation) uses
implemented configurable animation-based messages

closes #56
closes #57
Merge branch 'more-animation-and-timing'
Merge branch 'master' into power-ups