.DS_Store
DS_Store removed
Merge branch 'master' into feature/frontend
remove unused method. prep for some extending
Merge remote-tracking branch 'origin/feature/frontend' into feature/frontend
add display_mail function
add sort functionality
add OPEN and SAVE functionality
make empty string valid and param=None invalid
add validators to add and edit functions; confirm quit
fix a subtle bug in EDIT, so now it acts as you'd expect