cleanup launcher logic and ctx handling (#83)

add alert and warn status (#81)

autocreate topic for each nsqd found in lookupd (#80)

Meta: override values (#79)

* worker now overrides previously set meta data

* update circle

bug fix for pubsub consumer shutdown (#78)

pubsub update (#77)

* retry pubsub reading on error

* module update

* fix tests

don't encode & in json (#76)

integration tests for pubsub (#75)

* integration tests for pubsub

* update nsq unit tests

* change meta data to unescape params

* update tests to run locally

Bug Fix: pubsub consumer and launcher stats (#74)

* fix issue with reading multiple pubsub message at the same time

* fix launcher stats: running count

add bus.Topics function, switch nsq tests to circleci (#72)