Make .bullet serialization mode robust:

Deal with broken DNA serialization. Bullet 2.76 release revision 2035 - 2046 was broken, and this includes the Maya Dynamica plugin.
Added some workaround to deal with the broken .bullet files, instead of crashing.

src/BulletCollision/CollisionShapes/btCollisionShape.h

@@ -71,6 +71,10 @@ public:
 	{
 		return btBroadphaseProxy::isConvex(getShapeType());
 	}
+	SIMD_FORCE_INLINE bool	isNonMoving() const
+	{
+		return btBroadphaseProxy::isNonMoving(getShapeType());
+	}
 	SIMD_FORCE_INLINE bool	isConcave() const
 	{
 		return btBroadphaseProxy::isConcave(getShapeType());