GUAC-748: Add username parameter to telnet. Pass username via NEW-ENVIRONMENT telnet option.
initial support for FreeRDP 1.1 and 1.2
GUAC-716: Add password and password-regex parameters. Search for password prompt if password parameter specified.
GUAC-716: Stop password search if user input is detected.
GUAC-707 support for latest FreeRDP release (1.2.0beta1)
Merge remote-tracking branch 'mt4/freerdp-master-compat'