Add more tests around requierd options. Split out some helper functions into their own modules.
Set up for travis tests.

Only enable Firefox 18 for now.
Enable all the browsers, but only one Firefox.
Add YUIDoc docs. Create the FxaRelierClient with a clientId as a required parameter.
call Lightbox.load with the URL to load.
Try to add more tests to the FxaRelierClient. Break up the initialization of the lightbox api