[Buildbot] #2714: Rewrite irc status to work with data API

[Buildbot trac]

#2714: Rewrite irc status to work with data API
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Reporter:  dustin  |       Owner:  jaredgrubb
    Type:  task    |      Status:  new
Priority:  major   |   Milestone:  0.9.0
 Version:  master  |  Resolution:
Keywords:  irc     |
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Comment (by dustin):

 I think that Contact can just drop that parent class -- from the sound of
 it, all of the callbacks it might expect sa a !StatusReceiver have already
 been replaced by Data API subscriptions.

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Ticket URL: <http://trac.buildbot.net/ticket/2714#comment:15>
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