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.

Demos/ColladaDemo/ColladaConverter.h

@@ -87,4 +87,6 @@ public:
 
 };
 
-#endif //COLLADA_CONVERTER_H
+#endif //COLLADA_CONVERTER_H
+
+

Demos/ColladaDemo/ColladaDemo.h

@@ -37,4 +37,5 @@ class ColladaDemo : public DemoApplication
 
 };
 
-#endif //COLLADA_PHYSICS_DEMO_H
+#endif //COLLADA_PHYSICS_DEMO_H
+