allow producers to use lookupd
fix flakey test woth sleeps around nsq start/stop
decrease consumer discovery interval to combat producer startup
Minor code tweaks. Tests reliably passing.
add tests for producer nsqlookupd connections
Reorganized producer specs
Adding nsqlookupd support for Producer to README
Cleaned up discovery loop code in client_base
Cleaned up some duplication between client_base, consumer, and producer
Consolidated add_connection logic and make sure not to explode if nsqlookupd gives us an nsqd that we can't connect to
Merge pull request #6 from mmoutenot/feature/producer-nsqlookupd

Allow producers to use lookupd