Enable nsq

Resolves #48 
The shortest answer is: because that seems to make it work :-)
More seriously, it appears, at least from what I could figure out, is that XX@.service serves as a template and then XX@YY.service is a running instance of the service. A lot of the example for rethinkdb showed a clustered example with several containers where YY was 1, 2, 3, etc. In this case we only want (?) one running DB per instance of the app (for now at least) so I just made YY be ircdd. It's probably not too difficult to make YY something along the lines of an instance specific variable like the hostname or something, because you set the name in the `fleetctl start` command.