Author: David Woloszyn
MDL-79716 mod_assign: Send notifications for approaching due dates
http://git.moodle.org/gw?p=moodle.git;a=commit;h=b92e45cf84ac610c68313c9c2a374f87939cf474
http://github.com/moodle/moodle/commit/b92e45cf84ac610c68313c9c2a374f87939cf474
+ 4.5 en [assignmentduesoonhtml,mod_assign]
+ 4.5 en [assignmentduesoonsubject,mod_assign]
+ 4.5 en [messageprovider:assign_due_soon,mod_assign]
+ 4.5 en [sendnotificationduedatesoon,mod_assign]