re-format config to make it easier to review
replace :bb:bug: with sphinx's extlinks
replace :bb:pull: with sphinx's extlinks
replace :bb:src: with sphinx's extlinks
Fixing revlink in bitbucket-hook.
Merge PureW/buildbot:master (PR #1202)

+ relnotes update
Merge sa2ajj/buildbot:clean-bb-ext-up (PR #1201)