Older versions of Django (including 1.6) provided a patterns() method

to normalize a list of URL patterns, which included url() entries

and tuples. Modern versions simplify all this, requiring the use of

url(), and removed patterns().
This change updates all URL patterns in Djblets to use url() and lists,

providing compatibility with Django 1.6 and higher.

Unit tests pass under Django 1.6. URL-related operations are no longer

failing under Django 1.10 (at least with the tests I've been able to run

so far).