Report CLI version in scripts that invoke docker

Extend scripts that invoke the docker CLI to report the version
by invoking `docker --version`.  Also add echo command to report
end of script where it was missing.  Includes docker-build.sh,
docker-login.sh, docker-push.sh and release-job.sh.  No functional
change to any script behavior, just a line of extra output.

Change-Id: Iac65366c7810d6f96fecb84267aa4c1dd9027dc1
Signed-off-by: Lott, Christopher (cl778h) <cl778h@att.com>