Git commits in Moodle 2.6.0 by Charles Severance

commit ba0f89e1682173a8dcdd9352dbb77d7d3f63b1a6
Author: Charles Severance <csev@umich.edu>
Date:   Sat, 19 Oct 2013 08:57:12 +0800
Tag:    v2.6.0-rc1

MDL-40531 mod_lti: Various 1.1/1.1.1 fixes.