Fix removing of container

[michal-josef-spacek]

This commit is adding code for check if container still exist after docker stop.

Use cases:

1) Docker stop automatically removes container docker run --rm .... docker stop ....

2) Docker stop don't remove container docker run .... docker stop .... docker inspect .... docker rm ....

[michal-josef-spacek]

@zmiklank I updated comment

[phracek]

@zmiklank @michal-josef-spacek DO NOT MERGE PR WITHOUT RUNNING TESTS.

[zmiklank]

@phracek, sorry, I will have it on my mind next time.