Author: David Monllaó
MDL-65585 analytics: Global on/off switch
http://git.moodle.org/gw?p=moodle.git;a=commit;h=bf25fb166c3024cdd1532f36a4f1702466b5c834
http://github.com/moodle/moodle/commit/bf25fb166c3024cdd1532f36a4f1702466b5c834
+ 3.8 en [configenableanalytics,core_admin]
+ 3.8 en [enableanalytics,core_admin]
+ 3.8 en [analyticsdisabled,core_analytics]