set ip addresses in vagrantfile
Merge branch 'master' into feature/network_topology

Conflicts:
	evilgenius/vagrant.py
remove default routes via NAT networking once the install scripts are finished.
network interfaces are now pulled up and addresses are set correctly
Router now has its own class
internal network interfaces now know the addresses of their peers.
router now actually routes, no internet yet.
rename dns-censorship provider to "no-censorship"
actually seperate before_install, install and after_install
make router pump all traffic through censorship provider
remove unneeded example shellscripts
reimplement NAT router as dummy censorship provider