[Evolution] Bug#347703: no, really, this is grave

[Albert Cahalan]

The error dialog box does not provide a button to delete
the cache and metadata files. There isn't even a menu
option or toolbar button for it.

Data recovery requires a nerd.

More than any other email client, evolution is meant
for non-nerd use. This isn't /bin/mail, mh, or emacs rmail.

In other words, permanent data loss is near certain.

Until this is fixed, evolution really shouldn't be installable
via debian-stable or debian-testing. Destroying people's
email does horrible things for Linux's image.

(dirty hack: put a "fix this" button on the error dialog)