[Buildbot] #3286: Port Gltlab status plugin for nine

[Buildbot trac]

#3286: Port Gltlab status plugin for nine
------------------------+--------------------
Reporter:  dustin       |      Owner:
    Type:  enhancement  |     Status:  new
Priority:  major        |  Milestone:  0.9.0
 Version:  master       |   Keywords:  gitlab
------------------------+--------------------
 Port the gitlab status plugin from eight to nine

--
Ticket URL: <http://trac.buildbot.net/ticket/3286>
Buildbot <http://buildbot.net/>
Buildbot: build/test automation