Absolute URLs for links appearing in feed

note that this changes the oft-used byline()
Issue 1859: Challenge settings don't catch contradictory dates
Issue 1859: Challenge settings don't catch contradictory dates
Adding changes to subscriptions_controller and subscriptions index.html.erb
Issue 2249: Clarifying errors on Prompt Memes
Adding tests to check prompt meme error notice
Issue 2969: Published Date on works not respecting time zone preference
Issue 2969: Changed how original date is computed.
Issue 3494: Moderators can delete PromptMeme sign-ups
Issue 3494: Now with tests
Issue 2662: Deleting Tag Set without javascript
Issue 2662: Cannot delete tag sets with JS disabled
Issue 2663: Tag sets: Can't Delete nominations without JS
Issue 2661: Tag sets: Can't Clear Nominations without JS
Casing issues. Adding confirm message.
Remove all the rebase mistakes
ID to class
Some more updates and tests for TagSets sans JS
search collections
Fix HTML relatd to LiveValidation on Support and Abuse forms