listcommands plugin for Roundcube Webmail

 Roundcube Webmail is a browser-based multilingual IMAP client with an
 application-like user interface. It provides full functionality
 expected from an e-mail client, including MIME support, address book,
 folder manipulation and message filters.
 .
 This package provide the 'listcommands' third-party plugin, which adds a set
 of commands to the email headers in order to manage mailinglist posting. This
 lets the user easily subscribe, unsubscribe, check the archives etc.