send emails individually, so errors won't be shown to everyone
Merge branch 'improvements_to_course_notifier' of github.com:jamox/tmc-server into bit-of-C-support
Merge branch 'bit-of-C-support' of github.com:TMCee/tmc-server into bit-of-C-support
Merge branch 'bit-of-C-support' of github.com:TMCee/tmc-server into bit-of-C-support
cleanup
Merge branch 'bit-of-C-support' of github.com:TMCee/tmc-server into bit-of-C-support