[Buildbot] #2942: Implement "slugs" for builders

[Buildbot trac]

#2942: Implement "slugs" for builders
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Reporter:  dustin       |       Owner:
    Type:  enhancement  |      Status:  new
Priority:  major        |   Milestone:  0.9.0
 Version:  master       |  Resolution:
Keywords:               |
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Changes (by dustin):

 * version:  0.8.9 => master


Comment:

 We seem to have decided to just require that builder names are identifiers
 in the Data API.  However, the `builders.name` column is of type TEXT, and
 we still have a hash ensuring uniqueness.  So both of those things need to
 be fixed.

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Ticket URL: <http://trac.buildbot.net/ticket/2942#comment:2>
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