This patch adds the config needed to create and maintain freezer
in Stackforge.
Freezer is an incremental backup and restore automation
tool for file system, MongoDB, MySQL.
LVM snapshot and strong encryption are supported and
data is stored in OpenStack Swift.
See also:
* https://pypi.python.org/pypi/freezer
Change-Id: Ib05a1f11577ba54ccc2c388c15057d6a5ee3199f