Refactoring of Bullet 2.11 now available, GPU physics demo

[Erwin Coumans]

Update Bullet 2.11:
* more demos have been converted to use btDynamicsWorld
* more consistent memory strategy (who creates things needs to delete them)
* removed Extras/PhysicsInterface folder

Complete refactoring of Bullet, and addition of GPU physics demo.
Information about migrating from Bullet 1.x to Bullet 2.x:
http://www.continuousphysics.com/mediaw ... Bullet_2.x

Download sources:
http://www.continuousphysics.com/mediaw ... e=Download
Precompiled win32 Bullet Cylinder stacking & GPU physics demo available:
http://www.continuousphysics.com/ftp/pu ... -win32.zip
Updated Doxygen documentation and Bullet 2.1 User Manual pdf

Thanks Steve Baker for the refactoring help and GPU physics demo!
Please use this Bullet forum if there are any issues