Document changes and send pull request to crackcomm/nsqueue

PIVOTAL_TRACKER_STORY_URL=https://www.pivotaltracker.com/story/show/74538888
PIVOTAL_TRACKER_STORY_TYPE=feature
PIVOTAL_TRACKER_STORY_ESTIMATE=2
PIVOTAL_TRACKER_STORY_OWNER=danilomadrigalejos
PIVOTAL_TRACKER_STORY_REQUESTER=jrubin
PIVOTAL_TRACKER_STORY_LABELS=iteration-21, mq, mq-21