Add a test user fixture.
add email (my ucop) to test users
Working version of /edit/ in library_collection.urls.py.

No longer using namespaces for division of edit/view functions. Edit
functions are separate from view function (though currently just wrap
the view function) and access is restricted by the login_required
decorator. Not sure this is the best approach, as you will always have
distinct URLs for the 2 views.
Merge pull request #14 from mredar/master

Separate edit view functions it is.