Author: Andrew Nicols
MDL-53566 core: Move managecontextlocking to module
This will allow the capability to be applied at a range of contexts and
not just the system, making the system much more definable to a range of
users.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=6a89b6c8f0034e7fd96815d9799d52c57c8c86ae
http://github.com/moodle/moodle/commit/6a89b6c8f0034e7fd96815d9799d52c57c8c86ae
+ 3.6 en [site:managecontextlocks,core_role]