add btCollisionWorld::updateSingleAabb see http://bulletphysics.com/Bullet/phpBB3/viewtopic.php?f=9&t=3262

Fix memory leak, see http://bulletphysics.com/Bullet/phpBB3/viewtopic.php?f=9&t=3266
Change contact breaking threshold
Add 'needsResponse' test for CcdMotionClamping, see http://code.google.com/p/bullet/issues/detail?id=179
Updated user manual (needs lots more work)
Added autoexp.dat, enabled Microsoft Visual Studio debug visualization for btAlignedObjectArray and btVector3.

src/BulletCollision/CollisionShapes/btCollisionShape.cpp

@@ -16,6 +16,9 @@ subject to the following restrictions:
 #include "BulletCollision/CollisionShapes/btCollisionShape.h"
 
 
+btScalar gContactThresholdFactor=btScalar(0.02);
+
+
 /*
   Make sure this dummy function never changes so that it
   can be used by probes that are checking whether the
@@ -44,8 +47,7 @@ void	btCollisionShape::getBoundingSphere(btVector3& center,btScalar& radius) con
 
 btScalar	btCollisionShape::getContactBreakingThreshold() const
 {
-	///@todo make this 0.1 configurable
-	return getAngularMotionDisc() * btScalar(0.1);
+	return getAngularMotionDisc() * gContactThresholdFactor;
 }
 btScalar	btCollisionShape::getAngularMotionDisc() const
 {