-  Fixed formatting issue with locations and confirm deletion
-  Changed it so that Showing Past Answers for a gateway set shows all of the answers for the visible questions.
Removed unnecessary tr: flats from .p files.
-  Changed userList2 so that filter now sorts on the visible labels for permission and status, rather than the codes stored in the db
-  Changed output_comments in Problem.pm to use the effective user and not the user.
-  Removed defunct sort options from HmwkSetsEditor
-  prettied up timer css on math4 gateways.
-- Made the ? .png into bootstrap icon in math4