Fixed over 500 compile warnings. Mostly:

* Unused variables.
* Missing newlines at ends of #included files.
* signed int loop variables where the termination condition is an unsigned 'get number of' function.
* 'NULL' used inappropriately for an integer or character constant (NULL is a pointer)
* abstract base classes with no virtual destructor.
* Floating point constants used to initialise integer variables.

LinearMath/Matrix.cpp

@@ -200,4 +200,5 @@ const Matrix44 Inv(const Matrix44& src)
 // Matrix66
 
 #endif
-#endif //#ifdef WIN32
+#endif //#ifdef WIN32
+