[Buildbot] #2888: Move policies to botherders repo

[Buildbot trac]

#2888: Move policies to botherders repo
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Reporter:  dustin  |      Owner:  dustin
    Type:  task    |     Status:  new
Priority:  major   |  Milestone:  botherders
 Version:  0.8.9   |   Keywords:
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 http://trac.buildbot.net/wiki/Development links to a bunch of policies.
 Those would be better managed in the botherders repo, where their versions
 can be managed, and where we can discuss changes in pull requests.

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Ticket URL: <http://trac.buildbot.net/ticket/2888>
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