- removed warnings in GLUI, thanks Jorrit Tyberghein for the patch!

- removed memory leaks from BasicDemo and Bullet library (other demos needs to be cleaned up!)
- added memory leak debugging functionality in btAlignedAlloc.h: #define BT_DEBUG_MEMORY_ALLOCATIONS

src/BulletCollision/BroadphaseCollision/btAxisSweep3.h

@@ -288,6 +288,7 @@ btAxisSweep3Internal<BP_FP_INT_TYPE>::~btAxisSweep3Internal()
 
 	if (m_ownsPairCache)
 	{
+		m_pairCache->~btOverlappingPairCache();
 		btAlignedFree(m_pairCache);
 	}
 }