[Buildbot] #2863: Fix up development pages for new buildbot_pkg package

[Buildbot trac]

#2863: Fix up development pages for new buildbot_pkg package
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Reporter:  dustin       |      Owner:  dustin
    Type:  enhancement  |     Status:  new
Priority:  major        |  Milestone:  0.9.0
 Version:  0.8.9        |   Keywords:
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 * DevelopmentGettingStarted
  * RunningBuildbotWithVirtualEnv
  * http://docs.buildbot.net/latest/developer/www.html

 I need to figure it out myself, first.

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Ticket URL: <http://trac.buildbot.net/ticket/2863>
Buildbot <http://buildbot.net/>
Buildbot: build/test automation