optional mesh queueing. a replacement for rabbit
minion/spawn comms need significant cleanup, doc and externalization
the abstraction should be completed in subsequent patches
on-demand creation of producer queues based on routing keys
fix first-time creation bug for queues
replace stack traces with log.warn() calls
fix user-friendly output to send just a string, not a length-prefixed string
add more extensive state debugging
fix zero queue length polling lockup
use stable meshy version
patch to support hydra tests
Merge branch 'at-pull-mesh-mq-v2' of github.com:stewartoallen/hydra into at-pull-mesh-mq-v2
Merge pull request #58 from stewartoallen/at-pull-mesh-mq-v2

add mesh queueing option