More reliable version of loggregator CATs
More reliable version of loggregator CATs

gcf logs --recent has a bug that needs to be fixed prior to merging this change

Signed-off-by: Alex Jackson <5fd8ab8d1587e7ab8bef2ad3b5211edf3f734ab8@pivotallabs.com>

cloudfoundry-incubator/cf-test-helpers,nttlabs/cf-test-helpers,cloudfoundry-incubator/cf-test-helpers,nttlabs/cf-test-helpers