added cli support for commands adding route and face at the same time
allow insertion of listener and commands without interface name
added missing debug option in cli
default forwarder in hicnctrl back to hicn-light (assuming it was changed by mistake)
added functional tests adding route & face at the same time, with and without interface
bugfix: data result from child request is passed to the parent request (this is useful to implement GET for instance), so the parent should not assert an empty data, but instead reset it and free memory if not needed.