Author: Petr Skoda
MDL-30786 fix overview status of standard plugins to be deleted
http://git.moodle.org/gw?p=moodle.git;a=commit;h=ec8935f5761abc09b4ae144936998b6c35a81cdc
http://github.com/moodle/moodle/commit/ec8935f5761abc09b4ae144936998b6c35a81cdc
+ 2.3 en [status_delete,core_plugin]