Author: Sam Hemelryk
MDL-36115 cache: Fixed up requirements check in cache admin interfaces
http://git.moodle.org/gw?p=moodle.git;a=commit;h=7e7e108f9376db5334bc188adcc3de2dd9b43f2c
http://github.com/moodle/moodle/commit/7e7e108f9376db5334bc188adcc3de2dd9b43f2c
+ 2.4 en [ex_unmetstorerequirements,cache]