Start moving non-secrets from secret directory

This commit starts the migration of non-secret things from the secret
directory. This will make recreation of CV easier in the event that the
secrets are lost and makes setting up a Vagrant test network easier.
Fix handling of nslcd variables

Apparently nslcd just uses everything until the end of the line
verbatim, so there's no need to replace anything.
Fix typo
Fix permissions of /usr/local/sbin
Move from BIND to unbound+nsd

This is in preparation for OpenBSD 5.6 when BIND will be removed for unbound
and nsd.

With this commit site-hydrogen is removed since both Hydrogen and Helium
are masters for the zones served by nsd.
Remove xline.db from version control

This file is updated while the IRC server is running and as such should
not be modified by Ansible.
Decommission Magnesium

Finally.
Rename macros