Relocate tag wrangling CSS
Move statistics styles out of sandbox
Move form modes out of sandbox
Issue 3383: Challenges: Empty white box on sign-up form
Merge branch 'master' of git://github.com/otwcode/otwarchive into isue_3383
Issue 2619: Add prompt to Unposted claim blurbs
Counting unique unwrangled tag uses

There are a lot of whitespace changes too, because I'm a bit compulsive about spacing standards, but the main actual change is a bunch of .uniq for the unwrangled by_type counts.
Moved my changes from the original Issue_3197-UI_for_user_skins branch into this new branch.
skip delivery of notifications for orphaned works
3629 old header styles handing around sandbox stylesheet
3645 dotted lines everywhere on tag edit pages
3605 Cache JavaScript files as one
Issue 3038: Adding bookmarks to closed collections
Issue 3083: Bookmarks to closed collections. Adding tests
Issue 3083: Bookmarks to closed collections. Adding tests
Removing a straggling setflash
Trying to avoid a Travis-Only error
More testing fixes
Stab in the Dark
Stab in the dark #2