Git commits in Moodle 2.6.0 by Dongsheng Cai

commit b56d1ecadb147f650bb604548510c58b9e3f03fa
Author: Dongsheng Cai <dongsheng@moodle.com>
Date:   Wed, 18 Sep 2013 01:04:37 +0800
Tag:    v2.6.0-beta

MDL-41843 Uses OAuthException in moodle\mod\lti namespace