Author: Andrew Nicols
MDL-76867 core_admin: Migrate blocks admin ui to plugin management
http://git.moodle.org/gw?p=moodle.git;a=commit;h=0d18f6d0d4d127efeb6ef44d209958b2ce93d311
http://github.com/moodle/moodle/commit/0d18f6d0d4d127efeb6ef44d209958b2ce93d311
+ 4.2 en [blockprotectblock,core_admin]
+ 4.2 en [blockprotected,core_admin]
+ 4.2 en [blockunprotectblock,core_admin]
+ 4.2 en [blockunprotected,core_admin]