Feature Request: "Save and Exit"

[dcuny]

When closing Synthesizer V with unsaved changes, the user is presented with a “Discard unsaved changes?” dialog box offering two choices:

1. Discard
2. Cancel

The more standard behavior is to offer the message “Save file ?” and present these three options:

1. Yes
2. No
3. Cancel

The third option would make the application exit behavior a bit more pleasant.