Memory test

@ibuildthecloud - I just copy pasted the files from his repo :)
A few things:
1. Is having the for loop in here twice a mistake? They appear to be identical
2. This is not a reliable test because it is dependent upon ordering of keys in dictionaries. It is probably better to be explicit here when asserting the values that should be in the docker inspect.
3. There's a third issue regarding the dictionary of {"MaximumRetryCount": 0, "Name": "always"} being sent down by cattle but I need to think about it some more. Will get back to you on this one.