Enable binary-transmit mode in server by default, disabling CR->CRLF expansion
Don't expand CR->CRLF when in binary mode that was requested locally (option value is DO, instead of WILL), using new telnet_opt_enabled(). Request binary-transmit mode by default in Telnet server/answer mode. Set ServerBinary=false in svdm.ini to disable. This fixes the extra line-feeds in Telnet-server mode.