Fixed warnings in Bullet/src core library

Thanks Martijn Reuvers from Two Tribes B.V. (www.twotribes.com) for the patch

To make this work more visible, suppress warnings in external libraries in Extras (COLLADA_DOM, libxml and glui contain many warnings)
Added PreprocessorDefinitions: _CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE to vcproj files

src/BulletCollision/CollisionShapes/btCompoundShape.h

@@ -26,6 +26,7 @@ subject to the following restrictions:
 
 class btOptimizedBvh;
 
+
 ATTRIBUTE_ALIGNED16(struct) btCompoundShapeChild
 {
 	BT_DECLARE_ALIGNED_ALLOCATOR();