[Buildbot] #2971: add some badges to buildbot.net or trac

[Buildbot trac]

#2971: add some badges to buildbot.net or trac
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Reporter:  dustin  |       Owner:  dustin
    Type:  task    |      Status:  new
Priority:  minor   |   Milestone:  sys - other
 Version:          |  Resolution:
Keywords:          |
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Comment (by dustin):

 https://github.com/buildbot/buildbot-website/pull/12

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Ticket URL: <http://trac.buildbot.net/ticket/2971#comment:6>
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