Set up Zeroconf locally.

OS X will resolve .local domains automatically. We should also
be able to make this work on Linux and Windows.

See: #240
Disable vip-init in local environments
Add Zeroconf documentation.
Remove Windows vip-init script and update docs
s/vip.dev/vip.local
The vip-init script should still reboot and provision the VM.
Merge branch 'issue-240'

Conflicts:
	README.md