Cleanup: RFB Client

File: rfb.js (also websock.js)
Tests Added: True

Changes:
- De-Crockford-ified rfb.js
- Added methods to websock.js to skip bytes in the receive queue
Cleanup: UI code

File: ui.js
Tests Added: False

Changes:
- Fix JSHint errors
- add some curly braces to improve clarity
- move variable declarations to relevant locations instead of at the top
  of methods
Add support for Travis CI and SauceLabs Testing

This adds support for Travis CI and SauceLabs
testing.  Testing on SauceLabs in done via
the Karma test runner.