updating twitteroauth.php to be in line with latest commits up to 6/12/13 https://github.com/abraham/twitteroauth/commits/master/twitteroauth/twitteroauth.php
Facebook SDK needed to check for session being set to avoid a notice.

Signed-off-by: Galen Vinter <galen.vinter@gmail.com>
Merge branch 'staging' of github.com:Placester/builder into staging