Author: Mark Nelson
MDL-52035 enrol_lti: added sync_<grades/members> tasks
http://git.moodle.org/gw?p=moodle.git;a=commit;h=8ed2bbcfed79b8224876364ca428049563128145
http://github.com/moodle/moodle/commit/8ed2bbcfed79b8224876364ca428049563128145
+ 3.1 en [tasksyncgrades,enrol_lti]
+ 3.1 en [tasksyncmembers,enrol_lti]