Fixed commented code, added application icon to opencs

Forgot to uncomment code in CSVDoc::Operation::setBarColor() in previous commit

Added application icon (openmw.ico) to opencs.  Also added /apps/opencs/resources/images tree; resources.qrc to /resources; openmw.ico to /images.

Don't know how to duplicate the /images/openmw.ico structure on github... :)  

Apologies if I'm just making a mess of things - could probably use a few protocol pointers. :)