- turn scope into a $rootScope service.
- injector is now a starting point for creating angular application.
- added inject() method which wraps jasmine its/beforeEach/afterEach,
and which allows configuration and injection of services.
- refactor tests to use inject() where possible
BREAK:
- removed angular.scope() method
- Browser now starts the poller on first call to addPollFn()
- Many services ($location, $cookies, $router) are no longer eager-publish. The result is that
unless someone needs the $cookies, they will not cause the Browser to start polling for them.