Run dadoo integration tests using "dadoo run"
Run dadoo integration tests using "dadoo run"

As opposed to just "dadoo exec".

This is the code path that is exercised in peas, and may soon be the
only subcommand of dadoo. It's important that we retain test coverage
here.

[#151713778]

Signed-off-by: Craig Furman <82b4b6d2372fcea863d8fd21c02d40060d303650@pivotal.io>

cloudfoundry-incubator/guardian,cloudfoundry-incubator/guardian,cloudfoundry-incubator/guardian