[gh-546] Remove unl_wdn theme.js and move functionality to unl module

So that the base tag/anchor fix works on admin pages
[gh-546] Add module_filter module to project
Merge remote-tracking branch 'upstream/develop' into develop
Merge branch 'develop' into issue-546
[gh-546] Remove theme.js from unl_wdn info file
[gh-546] Rewrite unl.js to use suggested Drupal jQuery pattern
[gh-546] Remove @file comment at the top
[gh-546] Add Module Filter as dependency to unl profile
Merge pull request #557 from erasmussen2/issue-546

Closes #546