Change-Id: I821d998704756fa30278f41d0371051db9d3fc58
Change-Id: I41f6ebd63e5e551184f0863cd388c373ab0a1130
Base on docker-playground.git's ttcn3-pcu-test/*.cfg files, change IPs to 127.0.0.1, log to stderr, adjust pcu-socket path. Change-Id: Iff3e5e6cf0c608680c8c5f9f83e8bc1032274ea9