feature: Realms become real

Linked to branch of the same name in:
* ironfan_plugins
* ironfan
* enterprise_homebase
* ironfan-enterprise
* ironfan-pantry

Squashed commit of the following:

commit a2bfb551dee7c10740cc9566222a51851fc07ab4
Author: Travis Dempsey <dempsey.travis@gmail.com>
Date:   Tue Mar 11 11:46:31 2014 -0500

    add realm to discovery

Change-Id: Ic02ea926d37b0fc5de82a0652bf523ef048b5ad3