[Buildbot] #2844: c['www']['url'] should default to c['buildbotURL']

[Buildbot trac]

#2844: c['www']['url'] should default to c['buildbotURL']
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Reporter:  dustin       |       Owner:  ewong
    Type:  enhancement  |      Status:  assigned
Priority:  major        |   Milestone:  0.9.0
 Version:  0.8.9        |  Resolution:
Keywords:  simple       |
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Comment (by ewong):

 re: https://github.com/buildbot/buildbot/pull/1247#issuecomment-59825479

 So I'm adjusting this ticket to:

  make c['www']['url'] mandatory, with no default at all.

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Ticket URL: <http://trac.buildbot.net/ticket/2844#comment:2>
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