[Buildbot] #3084: convert all services to BuildbotService

[Buildbot trac]

#3084: convert all services to BuildbotService
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Reporter:  tardyp       |       Owner:
    Type:  enhancement  |      Status:  new
Priority:  major        |   Milestone:  0.9.+
 Version:  master       |  Resolution:
Keywords:               |
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Comment (by Ben):

 Would this be a step toward remote reconfig of services ?

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Ticket URL: <http://trac.buildbot.net/ticket/3084#comment:2>
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