mail/milter-manager: update 2.0.7 -> 2.1.1

• MASTER_SITES is now switched to SFJP.
• Update WWW.
• fixed portlint warnings
• Please note: it fails to run with ruby-2.4 and is marked BROKEN for that case

PR: 226692
Submitted by: Yasuhiro KIMURA <yasu@utahime.org>
Reviewed by: koobs