[Buildbot] #2818: [nine] rewrite buildsteps to not write to status

[Buildbot trac]

#2818: [nine] rewrite buildsteps to not write to status
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Reporter:  dustin       |       Owner:  dustin
    Type:  enhancement  |      Status:  new
Priority:  major        |   Milestone:  0.9.0
 Version:  0.8.7p1      |  Resolution:
Keywords:               |
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Comment (by dustin):

 ..and that last bit is https://github.com/buildbot/buildbot/pull/1409

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Ticket URL: <http://trac.buildbot.net/ticket/2818#comment:12>
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