[Buildbot] #3120: Add capabilities to slaves

[Buildbot trac]

#3120: Add capabilities to slaves
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Reporter:  tardyp       |       Owner:
    Type:  enhancement  |      Status:  new
Priority:  minor        |   Milestone:  0.9.+
 Version:  master       |  Resolution:
Keywords:               |
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Comment (by tardyp):

 @dustin, please have a look at:
 https://github.com/tardyp/buildbot_travis/blob/master/README.rst
 Its basically travis implemented with buildbot. It was originally done by
 jc2k, and I've been working to port it for nine. I like the CIaaS model of
 travis, buildbot would allow to run a .travis.yml on windows or osx.

 What I'm not found of with doing this in slave_info is that there is no
 central place where you can edit those info. If you need a new capability
 for your process, then you would have to edit all your slaves to add this
 new capability where it makes sense. I think they need to be centralised.
 Also, you don't have the slave_info at the time of configuration, so you
 cannot use it for the static use case, only for the dynamic one.

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Ticket URL: <http://trac.buildbot.net/ticket/3120#comment:5>
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