[Buildbot] #3521: InheritBuildParameter and WorkerChoiceParameter API are using status api

[Buildbot trac]

#3521: InheritBuildParameter and WorkerChoiceParameter API are using status api
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Reporter:  tardyp     |       Owner:
    Type:  undecided  |      Status:  new
Priority:  major      |   Milestone:  0.9.+
 Version:  master     |  Resolution:
Keywords:             |
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Changes (by ngladitz):

 * cc: nilsgladitz+buildbot@… (added)


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Ticket URL: <http://trac.buildbot.net/ticket/3521#comment:1>
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