replacing umlaute and fixing address in headers Haldeneggsteig -> Universitaetsstrasse

Signed-off-by: Reto Achermann <reto.achermann@inf.ethz.ch>

Partially working version of the modified network stack.
Status: Networking works
Small website test works (Barrelfish website without pdfs)
Full website test does not work (Barrelfish website with pdfs)
Tests done with e1000n running on separate core

Moved debug flag of nfs to Config.hs.