Skybox fixes
Got blood working again
Fixed C++11 compiler warnings/errors (mostly by adding ugly casts).
Fixed crash when closing mod selection dialog.
Merge branch 'master' of https://github.com/esper/chaotic-rage into esper-master
Support both Bullet 2.81 and Bullet 2.82 in btCRKinematicCharacterController
Merge branch 'esper-master'