[NTG-context] first-setup for windows

I would like to ask windows users to test the attached setup file if it works any better (and to make sure that I didn't do any mistakes while typing). I have put the updated version of first-setup.sh on the server already, but for Windows I simply don't dare to do it until somebody confirms that it seems to be ok. In both cases it would be great to get feedback if the problems with missing files are solved. Mojca PS: please remove the .txt ending (gmail doesn't allow sending .bat files)