Email tag comments regardless of user preference

(According to issue 3573, turning off comments for works should not prevent tag wrangling comments from being emailed.)

Includes new and edited comments.
Fix Works link for user dashboards and add tests for Works, Series, and Bookmarks links
Add Bookmarks and Works links to collection dashboard modules and add tests for them
3786 Don't use testy for the new test
3786 I call this development driven tests, ie tests edited until they pass
Merge branch 'refs/heads/master' into 0.9.12-issue-3573-tag-cmts-mandatory
Merge pull request #1361 from sarken/issue_3786

3786 "Works" button at bottom of user and collection Recent Works lists has vanished
Can haz test!
Merge pull request #1216 from CristinaRO/issue-3573-tag-cmts-mandatory

Email tag comments regardless of user preference
Merge branch 'refs/heads/master' into 0.9.12-issue-3764-redirect-after-sorting
Adding test for unsorted tags redirect