uploadomneon: test for lto mounts via [A-Z][0-9]{5}
uploadomneon: add test for file extension match
uploadomneon: cleanup logic
mmfunctions: cleanup email_delivery msg body, add exit status
mmconfig: add email_from email_to to conf file management
remove _email_outcome function

let’s do this later
makeyoutube: fix handling of argument array with email addresses
mmfunctions: fix email regex test
change EMAIL_TO to MAKEYOUTUBE_DELIVERY_EMAIL_TO and start to use it
mmfunctions: fix line breaks in email bodies
mmfunctions: fixes in deliver_output on exit status and directory tests