Stop marshalling numbers as floats

[bboreham]

Fixes #1390

Note that setting both --memory and --memory-swap is done to avoid Docker issuing a warning that it can't set the swap limit.

[rade]

I don't think the test is worth the hassle. remove.

[bboreham]

Are you referring to the last grep? Since it works on my machine and fails on CircleCI, I can easily agree with that sentiment.

However, just setting the memory limit (so there is a large number in the output) breaks docker inspect -f (without the UseNumber fix), so I think that is worth keeping.

[rade]

I am saying we don't need a test for this issue at all. Heresy, I know.

[bboreham]

You are saying to remove the whole file 605_proxy_inspect_test.sh ?

I guess I can put the memory limit into test 610. I like the idea of having a test that would have caught this error.

[rade]

no, I am saying don't add any extra test for this issue. i.e. 605_proxy_inspect_test.sh should remain unchanged.

[bboreham]

Done.