Add unit test for RootCtrl

This test checks that the right query is made to Swift. Since the
Swift client computes the default URL automatically, we configure
Karma to run the test using URLs that look like real Swift URLs.
Check that RootCtrl sets the default sort order
Refactor common logic for setting up RootCtrl and scope
Add local installation of jQuery

This is (also) included by Karma when running the test suite. This
will allow us to test the container controller, which uses jQuery
internally.

Remember to run "npm install" to actually download jQuery. This runs
"node_modules/.bin/bower install" for you.
Add unit test for ContainerCtrl
Verify that ContainerCtrl creates breadcrumbs
Test ContainerCtrl querying the container
Merge pull request #10 from mgeisler/unit-tests

Add some Karma unit tests