PUBDEV-1843: Grid testing.  Added print statement to show unit test run time in secs.
PUBDEV-1843: Grid testing.  Added print statement to show unit test run time in secs.

h2oai/h2o-3,michalkurka/h2o-3,mathemage/h2o-3,h2oai/h2o-dev,jangorecki/h2o-3,h2oai/h2o-dev,spennihana/h2o-3,spennihana/h2o-3,mathemage/h2o-3,h2oai/h2o-3,jangorecki/h2o-3,spennihana/h2o-3,mathemage/h2o-3,mathemage/h2o-3,h2oai/h2o-dev,h2oai/h2o-dev,h2oai/h2o-dev,h2oai/h2o-3,spennihana/h2o-3,h2oai/h2o-3,michalkurka/h2o-3,jangorecki/h2o-3,jangorecki/h2o-3,michalkurka/h2o-3,michalkurka/h2o-3,spennihana/h2o-3,michalkurka/h2o-3,h2oai/h2o-dev,michalkurka/h2o-3,h2oai/h2o-dev,jangorecki/h2o-3,mathemage/h2o-3,spennihana/h2o-3,jangorecki/h2o-3,michalkurka/h2o-3,spennihana/h2o-3,mathemage/h2o-3,h2oai/h2o-3,h2oai/h2o-3,mathemage/h2o-3,h2oai/h2o-3,h2oai/h2o-3,jangorecki/h2o-3