Author: Rajesh Taneja
MDL-40044 Roles: Added role_capabilites_updated event and replaced related add_to_log
http://git.moodle.org/gw?p=moodle.git;a=commit;h=82ddcad0a333a439764b9a47ae5b1c77e81fc1fd
http://github.com/moodle/moodle/commit/82ddcad0a333a439764b9a47ae5b1c77e81fc1fd
+ 2.6 en [eventrolecapabilitiesupdated,core_role]