Delete related files when deleting a database.

The journal file was not being deleted when an account was deleted.
Over time, one can end up with a collection of dead journal files.
Contact picture fix.

Clear out old/unrelated (previously bound) contactBadge info in
MessageListAdapter.bindView that could otherwise be displayed
when tapping on a contactBadge with no counterpartyAddress (may
require scrolling the message list up and down first before the
bug becomes evident).
Update the tests project.

Target the same SDK version as in K-9 Mail.

Update the .classpath file as modified by the latest Eclipse ADT plugin.

Remove unused import.
Eliminate unnecessary override in LocalAttachmentBody.

The overriding code is the same as the overridden code.
Issue 4594: draft not saved with shared info

When another app shared info with K-9 Mail, the draft was not
always being saved when the "Save as draft" menu option was selected.