Add HipChat notification to `.travis.yml`

Notifies CHEF's "Release Engineering" room.
Merge pull request #137 from opscode-cookbooks/hipchat-notifications

Add HipChat notification to `.travis.yml`
Change Jenkins command prefix to use the slave object
Add Build Statuses room
Escape data given to the executor
Always read plugin manifest files as UTF
Typo: Shelllwords -> Shellwords
Claim project (Release Engineering)
Upgrade to Berkshelf 3
Add ChefSpec tests for recipes
Add Jenkins::Executor tests
Remove .yardopts file
Run specs on Travis
Use ::File instead of File
Ruby 2.1 is semantic (no more patch levels)
Install with 7 parallel gem installers
Improve .travis.yml spacing
Only test pushes to the master branch
Remove foodcritic
Make sure to require the helper before including it