Changes

./mach raptor-test --test raptor-scn-power-idle-refbrow --app refbrow --binary org.mozilla.reference.browser --power-test --host 10.252.27.96

* ''it is important that you include '' '''`--power-test`''', ''when running power-usage measurement tests, as that will help ensure that local test-measurement data doesn't accidentally get submitted to Perfherder''