Author: Neill Magill
MDL-64525 comments: Should not be able to delete frozen comments
Before this change in a frozen context a user would be able to delete
their own comments.
After this change a user will only be able to delete their own comments
if they still have the capability to post new comments or the capability
to delete comments from any user.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=ba8185cb2aa7dd1fea2bfd01592166ac082e540a
http://github.com/moodle/moodle/commit/ba8185cb2aa7dd1fea2bfd01592166ac082e540a
+ 3.9 en [nopermissiontodelentry,core_error]