Display away data in revision fields

Summary:
Ball is more obvious and visible than I thought.
Delete the status word and display until date in title.

Also display the until date in revision list.
Also display near future dates with DoW instead of year.

Test Plan: Displayed revision and revision list with away reviewers.

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, Korvin

Differential Revision: https://secure.phabricator.com/D3407