BUG-624 make netconf tcp address optional in config.ini with default value set to 127.0.0.1:8383

Change-Id: I2a5732bd6bbb010b03d7daebb6bf30633ad536fb
Signed-off-by: Maros Marsalek <mmarsale@cisco.com>
Signed-off-by: Tomas Olvecky <tolvecky@cisco.com>
Merge "BUG-624 make netconf tcp address optional in config.ini with default value set to 127.0.0.1:8383"