Relocate tag wrangling CSS
Move statistics styles out of sandbox
Move form modes out of sandbox
Issue 3418: Multiple collections doesnt catch moderated status
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
Issue 2215: Error 500 on GE Summary page
Issue 2215: Adding tests
issue 3459: Humanize model names in errors
Issue 3459: Adding test
added new specs
invite requests and user acceptance of invite
updated a doc comment for is marke_invitation_redeemed
updated specs and simplecov
updating factory syntax