Author: Mark Nelson
MDL-36755 blocks: the course overview block can only be added to the My Moodle page so removing unnecessary addinstance cap
http://git.moodle.org/gw?p=moodle.git;a=commit;h=7428077d4b498eca890dcde504fe3999cc94ad09
http://github.com/moodle/moodle/commit/7428077d4b498eca890dcde504fe3999cc94ad09
- 2.4 en [course_overview:addinstance,block_course_overview]