Bug 978952 - stand up trivial mocha/chai test; code by @n1k0 and @dmose; r=@Standard9
Bug 976614 Allow chrome uris for built-in social providers - Allow chrome uris to be used
Initial Prefs for Loop Social Providers
Basic PoC of exposing frontend files to the loop app.
Added default loop styles, linked FxA signup page.
Added UI toolkit page (not exposed to content).
Added support for requesting a call-url.

Vanilla js, test driven code (still missing bits from the server.)
Added support for loop client err notifications.
Moved loop dom utils to its own module.