A quick fix for the Unexpected kw arg in _custom_start_client error.
Monkey patches this fix:
https://github.com/robotframework/SSHLibrary/pull/159/files
Change-Id: Iaca2c3cb402f1f24d096c947bec5cb3e6aaf77d6 Signed-off-by: George Paraskevopoulos <geopar@intracom-telecom.com>