chore(protractor): Switched to local protractor/mocha

It's preferable to use local copies of protractor and mocha rather than
globals since protractor and mocha need special settings for using the
latest version of each (Andrew's reason, not mine!)

Closes: #570
fix(travis): Wait for selenium to start
Merge pull request #571 from rackerlabs/localprotractor

chore(protractor): Switched to local protractor/mocha