from the todo list:
- dont close composer without warning when there is data
- check for duplicate addresses in the composer
- sort indicators in the composer missing
- reworked the listviews, so the delete column is always visible and column 1 always takes as much space as possible.
- context menu with delete is not needed now in those lists
- renamed 'file' to 'attachment' in composer
- add a space between organisation and emailaddress