Using the quoted doted path to the view callable object
(e.g. 'patchwork.views.projects') is going to be deprecated soon.
Using either the actual callable or a named URL is recommended.
Let future-proof urls.py by using the actual callables there and
name all the URLs, so we can use the names everywhere else.
Signed-off-by: Arkadiusz Hiler <firstname.lastname@example.org>