improved behavior of Message.clone
improved behavior of Message.clone

zeromq/fszmq,robertpi/fszmq,zeromq/fszmq,vasily-kirichenko/fszmq,pblasucci/fszmq,robertpi/fszmq,pblasucci/fszmq,vasily-kirichenko/fszmq,zeromq/fszmq,pblasucci/fszmq,DanielFabian/fszmq,DanielFabian/fszmq,DanielFabian/fszmq,robertpi/fszmq,vasily-kirichenko/fszmq