fixed memory leak, thanks AshMcConnell for reporting!

http://continuousphysics.com/Bullet/phpBB2/viewtopic.php?t=1009

src/BulletCollision/CollisionDispatch/btConvexConvexAlgorithm.cpp

@@ -62,6 +62,14 @@ btConvexConvexAlgorithm::CreateFunc::CreateFunc(btSimplexSolverInterface*			simp
 	m_pdSolver = pdSolver;
 }
 
+btConvexConvexAlgorithm::CreateFunc::~CreateFunc() 
+{ 
+   if (m_ownsSolvers){ 
+      delete m_simplexSolver; 
+      delete m_pdSolver; 
+   } 
+}
+
 btConvexConvexAlgorithm::btConvexConvexAlgorithm(btPersistentManifold* mf,const btCollisionAlgorithmConstructionInfo& ci,btCollisionObject* body0,btCollisionObject* body1,btSimplexSolverInterface* simplexSolver, btConvexPenetrationDepthSolver* pdSolver)
 : btCollisionAlgorithm(ci),
 m_gjkPairDetector(0,0,simplexSolver,pdSolver),

src/BulletCollision/CollisionDispatch/btConvexConvexAlgorithm.h

@@ -62,6 +62,7 @@ public:
 		
 		CreateFunc(btSimplexSolverInterface*			simplexSolver, btConvexPenetrationDepthSolver* pdSolver);
 		CreateFunc();
+		virtual ~CreateFunc();
 
 		virtual	btCollisionAlgorithm* CreateCollisionAlgorithm(btCollisionAlgorithmConstructionInfo& ci, btCollisionObject* body0,btCollisionObject* body1)
 		{