wordpress-mobile/WordPress-iOS — pull request #685 by astralbodies (2013-11-27 16:37:42+00:00)
Title: #673 - Fix WP.com auth to use OAuth2 token and wipe when fails

Set up the initial WP.com check to use the OAuth2 token, wipe token if auth fails. Prevents WP.com failures if a user changes their password but leaves the app authorized. Handles a deauthorized app a bit better but additional UI work is needed (outside the scope of this PR) for handling bad auth.