Author: Brendan Heywood
MDL-64543 profiling: Add ability to auto profile only slow scripts
http://git.moodle.org/gw?p=moodle.git;a=commit;h=504198780ef749cbc5e6d9206e7a987fedd1b625
http://github.com/moodle/moodle/commit/504198780ef749cbc5e6d9206e7a987fedd1b625
+ 3.7 en [profilingslow,core_admin]
+ 3.7 en [profilingslow_help,core_admin]