#498 ignore GooseDefault::Host if set to an empty string
#487 add dev-dependency on (nix)[https://docs.rs/nix] to provide test coverage confirming proper shutdown from SIGINT (ctrl-c); capture ctrl-c in a lazy_static wrapped in a RwLock so it can be reset
#489 don't panic when writing report file and shutting down with controller
#505 introduce --scenarios (and GooseDefault::Scenarios) so a subset of scenarios can be launched, and --scenarios-list to display internal machine names for matching
0.16.3 July 17, 2022
GooseDefault::Hostif set to an empty string--scenarios(andGooseDefault::Scenarios) so a subset of scenarios can be launched, and--scenarios-listto display internal machine names for matching