To ensure these work locally over the file:/// protocol, simply
use https instead.
Straighten out inconsistencies in the markup (closing slash). Made
to match the test/index.html file.
Also:
* index-mobile.html: Re-use jQuery object instead of executing
the same query three times.
* test: Remove unused qunit-fixture element.
Protocol-relative urls don't work when using the file from the
file system directly in a browser (they require the file being
served from a http web server).
This is why the Grunt run has been broken since 426ccf0131, as
can be seen on https://travis-ci.org/wikimedia/jquery.uls/builds.
