* build_docker: turn on output DEDUP
* build_docker: tweak env vars responded to for suppressing different steps
* runAmbrosiaService: rework shutdown sequence
* run_linux_ci: don't extract tarball when running tests
* PTI/run_small: fix regression bug when reworking this script to use runAmb*
* DusBin: file away KubernetesLocalDemo as unfinished for now
Testing: This commit passes ./Scripts/run_linux_ci.sh on my Mac laptop.