Git commits in Moodle 2.7.0 by Matt Petro

commit 5f1b2e882181cb1a828c8b4af9ccca67577ebfaa
Author: Matt Petro <petro@engr.wisc.edu>
Date:   Wed, 16 Apr 2014 11:11:32 +0800
Tag:    v2.7.0-rc1

MDL-45118 shibboleth: set context on index page

commit 74b3c4e58cd660b9e8650ce4e652c41c58ea9832
Author: Matt Petro <petro@engr.wisc.edu>
Date:   Fri, 07 Feb 2014 02:32:04 +0800
Tag:    v2.7.0-beta

MDL-44029 mod_quiz: Fixing group deleted handler so it does not remove user overrides.