Author: sam marshall
MDL-72619 core_cache: Provide admin page to view cache size estimates
http://git.moodle.org/gw?p=moodle.git;a=commit;h=1b94bb8c20788d958bb6f068fb222442e021f6be
http://github.com/moodle/moodle/commit/1b94bb8c20788d958bb6f068fb222442e021f6be
+ 4.0 en [cacheusage,core_cache]
+ 4.0 en [usage_items,core_cache]
+ 4.0 en [usage_mean,core_cache]
+ 4.0 en [usage_samples,core_cache]
+ 4.0 en [usage_sd,core_cache]
+ 4.0 en [usage_total,core_cache]
+ 4.0 en [usage_totalmargin,core_cache]
+ 4.0 en [usage_realtotal,core_cache]