Author: Marina Glancy
MDL-27122 Allow admin to change CFG->undeletableblocktypes on 'Manage blocks' settings page. Instances of protected block types will be undeletable only from site context
http://git.moodle.org/gw?p=moodle.git;a=commit;h=28e63a9d8c88e2c4cb6ad2b1a8bcc147276700ed
http://github.com/moodle/moodle/commit/28e63a9d8c88e2c4cb6ad2b1a8bcc147276700ed
+ 2.2 en [blockprotect,core_admin]
+ 2.2 en [blockprotect_help,core_admin]
+ 2.2 en [blockunprotect,core_admin]