Merge pull request #6 from garrensmith/1829-User-Experience-Redesign

1829 user experience redesign
ai bar fixes
Merge issue. Lost a } tag
fixes for windowResize
Reverted the Spinner change because it breaks addons like Support.
Reverted adding mixins.less because it's already added when you include bootstrap & it breaks
addons that use mixings when running the dev scripts
Api bar
Fauxton: Spin.js improvements and Active Task clean
We now have a spinner for the route object that spins until a
view is ready to show a spinner on its section.

Removed the event listenOnce and added showData to the beforeRender