Don't modify ADMIN_GROUP.

This bug made it so that the 'packager' group was *appended* to
the ``ADMIN_GROUP`` list whenever somebody logged in.
Merge pull request #77 from fedora-infra/bugfix

Don't modify ADMIN_GROUP.
Explicit the argument to make it easier to read/follow
Add the possibility to filter the packages of a packager by branches

Relates to https://bugzilla.redhat.com/show_bug.cgi?id=1119099
Now that /api/packager/package has been fixed wrt the 'watch' packages, adjust the unit-test
Add unit-test checking for the branches filtering of /api/packager/package
Remove debugging print
Add a configuration file for pep8
pep8 cleanup
Update to 1.15 and adjust documentation accordingly
Small indentation fix
Add button to manage the watch* ACLs under the watchers table

Fixes https://fedorahosted.org/pkgdb2/ticket/28
Add a dedicated method to approve all the pending ACLs
Add unit-tests for the method to approve all the pending ACLs
Add a dedicated method to deny all the pending ACLs
Add unit-tests for the method to deny all the pending ACLs
Add CSRF protection on the Approve/Deny all pending ACls
Adjust the unit-test to validate the CSRF protection for Approve/Deny all pending ACLs
Add the approve and deny all pending ACLs button on the pending ACLs page

Fixes https://fedorahosted.org/pkgdb2/ticket/27
Small css enhancement to space a little the approve/deny all pending ACLs buttons