Added OpenGL includes for Mac OS X

~g2k

include/mygl.h

@@ -3,9 +3,17 @@
 
 #ifdef WIN32
 #include <windows.h>	//Remove if possible
-#endif
 #include <GL/gl.h>
 #include <GL/glu.h>
+#endif
+#ifdef __linux
+#include <GL/gl.h>
+#include <GL/glu.h>
+#endif
+#ifdef __APPLE__
+#include <gl.h>
+#include <glu.h>
+#endif
 //#include <gl/glaux.h>	//Hopefully nothing needs this remove if it works in windows
 #include <string>
 #include "datatypes.h"