subtests...run_simple: Renamed to run

Signed-off-by: Chris Evich <cevich@redhat.com>
subtests...psa: Update test

*  Replace DockerContainersCLICheck class with clic.verify_output = True

*  Add debugging messages around gathered data

Signed-off-by: Chris Evich <cevich@redhat.com>
subtests...insert: Fix string is not a list

Signed-off-by: Chris Evich <cevich@redhat.com>
fixup! dockertest: Mass-docstring + pep8 fix/cleanup

Signed-off-by: Chris Evich <cevich@redhat.com>
subtests...wait: Fix call get_container_list

This method returns implementation-specific values,
it should rarely (if ever) be called by any test code.
The only reason it's there is as a standardized extension
point for implementations to use.

Signed-off-by: Chris Evich <cevich@redhat.com>
subtests...start: Fix not ignoring error message

Signed-off-by: Chris Evich <cevich@redhat.com>
subtests...save_load: Fix initialize() & DockerCmd() calls

Signed-off-by: Chris Evich <cevich@redhat.com>
subtests...attach: Fix missing config option

Signed-off-by: Chris Evich <cevich@redhat.com>