[Buildbot] #2644: Add more MQ backends

[Buildbot trac]

#2644: Add more MQ backends
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Reporter:  dustin       |       Owner:
    Type:  enhancement  |      Status:  new
Priority:  critical     |   Milestone:  0.9.0
 Version:               |  Resolution:
Keywords:  mq           |
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Comment (by sa2ajj):

 How do we need this for 0.9.0 release?  0.9.0 beta can be deployed without
 additional MQ backends, do we really need more backends?

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Ticket URL: <http://trac.buildbot.net/ticket/2644#comment:6>
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