vsftpd: add chown_uploads and chown_username parameters.
vsftpd: add listen_address parameter.
Merge pull request #13 from gnubila-france/add_chown_uploads_parameters

vsftpd: add chown_uploads and chown_username parameters.
Merge pull request #12 from gnubila-france/add_listen_address_parameter

vsftpd: add listen_address parameter.
Merge branch 'master' of https://github.com/example42/puppet-vsftpd