Argh the comments controller argh

(Redirect to the tag's to_param rather than name, whenever the comment is on a tag.)

Issue 3748  Pagination not working on Wrangling comment pages
http://code.google.com/p/otwarchive/issues/detail?id=3748
Merge branch 'refs/heads/master' into 0.9.11-issue-3748-pagination-tag-comments-weird-charas
Merge branch 'refs/heads/master' into 0.9.11-issue-3748-pagination-tag-comments-weird-charas
Adds tests for 3748

Also fixes a little more of the redirect after commenting. >.> Found thanks to tests. :D
Merge pull request #1377 from CristinaRO/issue-3748-pagination-tag-comments-weird-charas

Argh the comments controller argh