Create faSurface spec.
Create basic faApp spec.
faApp test now properly triggers 'registerChild' event.
Use Olivier's suggestion and update karma.conf to load famous core modules through a CDN, rather than bower.

Since we're not loading individual requirejs modules, we don't need a
requirejs config, so get rid of test-main.js.
Revert changes that were done to famo.us for testability.  Convert tabs to spaces.