SI-7591 Move command-line spec usage demo to tests
SI-7591 Minor cleanups
SI-7591 Make s.t.p.n.ConsoleRunner use s.t.c.CommandLine

Before this change s.t.n.u.CommandLine was used instead.

Remove command-line options --ansi, --buildmanager, --show-log
which don't have any effect and don't seem to be used anywhere.
Merge pull request #2692 from soc/SI-7591

SI-7591 Migrate command-line parsing to s.t.cmd