Fix some more url template tags for Django > 1.4

As of Django 1.5, the url template tag's first argument must be a
quoted literal and the arguments cannot be comma-seperated anymore.

This commit fixes all occurences of "{% url " followed by a
character other than ' or ".
Merge pull request #631 from fzadow/fix-url-template-tags

Fix some more url template tags for Django > 1.4