Trash plugin: Assign storage to all mailboxes at startup so errors are caught immediately. Also previous optimization change broke trash plugin when using multiple mail_users. This change fixes it to work again.
Trash plugin: Assign storage to all mailboxes at startup so errors are caught immediately.
Also previous optimization change broke trash plugin when using multiple
mail_users. This change fixes it to work again.

--HG--
branch : HEAD

dscho/dovecot,dscho/dovecot,dscho/dovecot,dscho/dovecot,dscho/dovecot