[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 Mikhail Sobolev <mss@…>):

 In [changeset:"ae0e33d970174f668dbabe38a2789e480435f10f"]:
 {{{
 #!CommitTicketReference repository=""
 revision="ae0e33d970174f668dbabe38a2789e480435f10f"
 Merge pull request #1271 from djmitche/bug2949

 move support for description{,Done,Suffix} entirely to BuildStep

 See ticket:2818
 Fixes ticket:2949
 }}}

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Ticket URL: <http://trac.buildbot.net/ticket/2818#comment:10>
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