- keep track of all memory allocations (gNumAllignedAllocs/gNumAllignedFree)

All memory allocations in Bullet go through btAlignedAlloc/btAlignedFree
Fix in hinge constraint constructors, thanks Marcus Hennix!

src/BulletDynamics/Vehicle/btRaycastVehicle.cpp

@@ -527,10 +527,14 @@ void	btRaycastVehicle::updateFriction(btScalar	timeStep)
 			return;
 
 
-		btVector3*	forwardWS = new	btVector3[numWheel];
-		btVector3*	axle = new btVector3[numWheel];
-		btScalar* forwardImpulse = new btScalar[numWheel];
-		btScalar* sideImpulse = new btScalar[numWheel];
+		void* mem = btAlignedAlloc(numWheel*sizeof(btVector3),16);
+		btVector3*	forwardWS = new	(mem)btVector3[numWheel];
+		mem = btAlignedAlloc(numWheel*sizeof(btVector3),16);
+		btVector3*	axle = new (mem)btVector3[numWheel];
+		mem = btAlignedAlloc(numWheel*sizeof(btScalar),16);
+		btScalar* forwardImpulse = new (mem)btScalar[numWheel];
+		mem = btAlignedAlloc(numWheel*sizeof(btScalar),16);
+		btScalar* sideImpulse = new(mem) btScalar[numWheel];
 		
 		int numWheelsOnGround = 0;
 	
@@ -702,10 +706,10 @@ void	btRaycastVehicle::updateFriction(btScalar	timeStep)
 			}
 		}
 
-		delete []forwardWS;
-		delete [] axle;
-		delete[]forwardImpulse;
-		delete[] sideImpulse;
+		btAlignedFree(forwardWS);
+		btAlignedFree(axle);
+		btAlignedFree(forwardImpulse);
+		btAlignedFree(sideImpulse);
 }