added more options to dovecot 10-mail
Merge commit '7aa0d2a4c1e8a6fb6abf762b43f20bfec79d9391' into development
added backport support for dovecot
corrected typo
removed dovecot version again
corrected pinning
updated configuration to 2.2.9
added override fields to userdb and better settings
added auth_username_format
added more configurations
corrected parameter names
added dovecot lmtp inet listener configuration
added lmtp mail plugins