Author: Paul Holden
MDL-40669 tool_uploaduser: allow emailstop to be set during upload.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=c4e79fc6047931dbf4a5c05cfdf974f3d7311745
http://github.com/moodle/moodle/commit/c4e79fc6047931dbf4a5c05cfdf974f3d7311745
+ 3.8 en [emailstop,core]