Author: Amaia Anabitarte
MDL-68936 core_contentbank: Checking manage permissions to allow editing
http://git.moodle.org/gw?p=moodle.git;a=commit;h=0633e60a91bd4db3f01c1858a3259ecbcc7f9bfa
http://github.com/moodle/moodle/commit/0633e60a91bd4db3f01c1858a3259ecbcc7f9bfa
+ 3.9 en [contenttypenoedit,core_contentbank]