[Buildbot] #2862: Add a new label for PRs @ GitHub: eight

[Buildbot trac]

#2862: Add a new label for PRs @ GitHub: eight
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Reporter:  sa2ajj       |      Owner:
    Type:  enhancement  |     Status:  new
Priority:  major        |  Milestone:  undecided
 Version:  0.8.9        |   Keywords:
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 This way it's gonna be much easier to differentiate maintenance PRs from
 others while using the overview screen for PRs.

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Ticket URL: <http://trac.buildbot.net/ticket/2862>
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