Small fix to the printed debug message
Added rcube_plugin::add_label() method
Move rcmail::deliver_message() to framework for common use
Fix Net_Socket bug with no timeout (failed connection in managesieve plugin)
Merge branch 'master' of github.com:roundcube/roundcubemail
Replaced German labels for from/to with more common words in order to avoid conflicts with 'sender' (#1489084)
Merge branch 'master' of github.com:roundcube/roundcubemail