change distribution to unstable
remove trailing whitespace
remove README.md: not included in upstream sources
Add japanese translation ja.po

Closes: 691936
Thanks: victory
Add brazilian portuguese translation pt_BR.po

Closes: 719933
Thanks: Adriano Rafael Gomes
change recommends of postgresql-server (not existing) to postgresql.

Closes: 699602
Thanks: Michael Neuffer
remove trailing whitespaces
Change suggestion of transitional package dovecot-common to dovecot-core
Add new recommended package 'zendframework'

Package is needed for usage of the optional XMLRPC interface.

Closes: 684080
Thanks: Benedikt Trefzer