roundcube plugin: add Spam/Ham-buttons
Adds a new button to Roundcube's mailbox toolbar to mark the selected
messages as Junk/Not Junk, optionally detaching original messages from
spam reports if the message is not junk and learning junk/not junk using
various methods (sa-learn, etc.).

Maintainer: The OpenBSD ports mailing-list <ports@openbsd.org>

WWW: https://github.com/JohnDoh/Roundcube-Plugin-Mark-as-Junk-2/
