Author: Simey Lameze
MDL-56501 message: introduce new manageallmessaging capability
http://git.moodle.org/gw?p=moodle.git;a=commit;h=343ba16c317b49ef3eb2c29ca7d57bd3e0622ef5
http://github.com/moodle/moodle/commit/343ba16c317b49ef3eb2c29ca7d57bd3e0622ef5
+ 3.2 en [site:manageallmessaging,core_role]