This is a complete DNS solution, with hidden master and bind9 slave.

It lacks the designate-sink service, because there is no true specification
to implement that. It listens for Nova/Neutron events and creates records
though adding those to just 1 domain isn't helping much in an environment
with multiple tenants.

Change-Id: I500fb6058b118d25a4ccfd1d3479830c36af7e2a
Blueprint: designate-container