Moved more URLs from djangosnippets.org to cab.

Fixes #7.
Fix title autocompletion

Previously the autocompletion wasn't working at all and the
completion itself would only have put the title of a match
into the search field.

This change (besides fixing the completion itself) redirects
the user directly to the selected snippet.
Fix import error.
Added 1.6 to migration.
Renamed cab to django-cab.
Enabled 1.6.x tests.
Removed use of populate_xheaders from detail view since it was removed from Django.
Extended author field in setup.py.
Added setup.cfg
Merge pull request #8 from zerok/feature/autocompletion-redirect

Fix title autocompletion
Use named URL patterns for the feeds.
Use feed urlpatterns.
Add users URL pattern.
Use more url template tags.
Bumped version up a notch.
Fixed users URL path.
Newer test targets.
Actually, 1.4.x is dead anyways.
Use newer URL patterns.