Added --force switch to mysql command when the db dump gets imported back inti the database so that the import continues even if a database table is missing.

Merged revisions 1832-1836 from stable (added dovecot support for debian squeeze and added a new distid and class for debian6 specific modifications.

the pwd is not longer stored in plaintext

fix bug FS#1200 - id elents should be unique. have changed side nav template, this needs to change too.