make jid parameter to gajim-remote's send_file optional
Please make jid parameter to gajim-remote's send_file command optional. If it is not provided ask user to choose recipient(s). This will help a lot putting "XMPP User" option in many filemanagers' "send to" file context menu (e.g. http://thunar.xfce.org/pwiki/documentation/sendto_menu)