Fixes from review #600

Job	Run time
prep-testbed	10s
publish-main	0s
test-docker-starter	1m 12s
test_build_test_container.py	2m 32s
test_click_api_consistency.py	44s
test_console_script.py	28s
test_docker_api_build.py	1m 38s
test_docker_api_export.py	1m 37s
test_docker_api_push.py	1m 50s
test_docker_build.py	2m 13s
test_docker_clean.py	1m 10s
test_docker_export.py	2m 12s
test_docker_load.py	2m 9s
test_docker_pull.py	2m 26s
test_docker_push.py	2m 30s
test_docker_save.py	2m 7s
test_docker_upload.py	5m 6s
test_generate_language_activation.py	1m 39s
test_install_starter_scripts.py	1m 10s
test_lang_activation_builder.py	31s
test_language_definition.py	47s
test_push_test_container.py	4m 11s
test_run_db_test_builtin_languages.py	4m 24s
test_run_db_test_docker_credentials.py	30s
test_run_db_test_docker_db.py	4m 36s
test_run_db_test_docker_db_check_arguments.py	4m 38s
test_run_db_test_docker_db_reuse.py	4m 45s
test_run_db_test_docker_pass_through.py	6m 18s
test_run_db_test_external_db.py	6m 42s
test_security_scan.py	2m 50s
	1h 13m 5s

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