1. Check material names passed to the physics engine (for collision sensors.)

Consider:
gameobj->getClientInfo()->m_auxilary_info = (matname ? (void*)(matname+2) : NULL);
It works if matname is "MAblah", but not if matname is "".

2. Added constructor for struct RAS_CameraData.
3. Added initializers to the struct KX_ClientObjectInfo constructor
4. Collision sensors won't detect near sensors.
5. A stack of minor tweaks, adjusting whitespace, using ++it for stl stuff.

source/gameengine/GamePlayer/ghost/GPG_ghost.cpp

@@ -104,8 +104,8 @@ void usage(char* program)
 	consoleoption = "";
 #endif
 	
-	printf("usage:   %s -w [-p l t w h] %s[-g gamengineoptions] "
-		"-s stereomode filename.blend\n", program, consoleoption);
+	printf("usage:   %s [-w [-p l t w h]] %s[-g gamengineoptions] "
+		"[-s stereomode] filename.blend\n", program, consoleoption);
 	printf("  -w: display in a window\n");
 	printf("  -p: specify window position\n");
 	printf("       l = window left coordinate\n");