Merge pull request #143 from fsouza/master

Update list of languages in /docs/
Typo
Merge pull request #144 from Maks3w/patch-3

Typo
Add documentation on new env possiblities
Merge pull request #126 from travis-ci/env-improvements

Add documentation on new env possiblities
Remove a leftover from an early version of this guide
Add RabbitMQ to the list of provisioned services
Merge branch 'master' of github.com:travis-ci/travis-ci.github.com
Post mortem on the pull request fiasko.
Add another paragraph.
Add bluebox link.
We don't simply merge a pull request.
Small reflection on external APIs, and love from the Travis team.
Note on reenabling pull requests.
Merge pull request #145 from travis-ci/mm-pull-requests-post-mortem

Post mortem on the pull request fiasko
YAML, you so cray!
Blog post on HipChat notifications.
Fix date.
Merge pull request #146 from travis-ci/mm-hipchat

HipChat!
Fix title.