- update to PostfixAdmin 3.0.2:
- SECURITY: don't allow to delete protected aliases (CVE-2017-5930, boo#1024211)
- fix VacationHandler for PostgreSQL
- AliasHandler: restrict mailbox subquery to allowed and specified domains
to improve performance on setups with lots of mailboxes
- allow switching between dovecot:* password schemes while still accepting
passwords hashed using the previous dovecot:* scheme
- FetchmailHandler: use a valid date as default for 'date'
- fix date formatting in non-english languages when using PostgreSQL
- various small fixes