Adding wrangle to fandoms (plural) to fandom wrangle pages
3912 Remove Add new tags field from wrangling pages
Merge branch 'refs/heads/master' into 0.9.15-issue-3531-wrangle-to-fandoms

Conflicts:
	app/views/tags/wrangle.html.erb
Merge branch 'refs/heads/master' into 0.9.15-issue-3531-wrangle-to-fandoms
Merge branch 'refs/heads/0.9.15-sarken-issue_3910-heading-text' into 0.9.15-issue-3531-wrangle-to-fandoms
Merge branch 'refs/heads/0.9.15-sarken-issue_3912-remove-add-new' into 0.9.15-issue-3531-wrangle-to-fandoms
Merge branch 'refs/heads/sarken-issue_3913' into 0.9.15-issue-3531-wrangle-to-fandoms

Conflicts:
	app/views/tags/wrangle.html.erb
Re-integrates 3910
Merge branch 'refs/heads/master' into 0.9.15-issue-3531-wrangle-to-fandoms
Create saved work model
Add/remove functionality for saving works for later, plus basic work presenter start
Basic saved works index page
Delete saved works with js from index page
Update tests for marked for later move
Clean up saved works when work is deleted
Add missing li in sidebar
Fix missing subscription form
Updating saved works navigation markup as per sarken
Merge branch 'refs/heads/master' into 0.9.15-issue-3531-wrangle-to-fandoms
Still quiiite experimental for issue 3531