[Buildbot] #3118: broken urls in json help pages

[Buildbot trac]

#3118: broken urls in json help pages
----------------------+-----------------------
Reporter:  cyrilj     |      Owner:
    Type:  undecided  |     Status:  new
Priority:  major      |  Milestone:  undecided
 Version:  0.8.10     |   Keywords:
----------------------+-----------------------
 Hello,

 Url generated in json help pages are broken :
 {{{
 {{path_to_root}}json/{{ child|e }}
 {{path_to_root}}json/{{ child|e }}/help
 }}}

 This generates invalid urls in children, for exemple in json/builders, the
 url for child nodes are
 {{{
 http://localdomain/json/my_builder1
 http://localdomain/json/my_builder2
 }}}
 instead of:
 {{{
 http://localdomain/json/builders/my_builder1
 http://localdomain/json/builders/my_builder2
 }}}

 Fix is to make child nodes url relatives.

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Ticket URL: <http://trac.buildbot.net/ticket/3118>
Buildbot <http://buildbot.net/>
Buildbot: build/test automation