Added a test for the help command and improved the launch command test.
Added a test for the help command and improved the launch command test.

andreaturli/legacy-brooklyn,aledsage/legacy-brooklyn,bmwshop/brooklyn,aledsage/legacy-brooklyn,bmwshop/brooklyn,neykov/incubator-brooklyn,andreaturli/legacy-brooklyn,andreaturli/legacy-brooklyn,aledsage/legacy-brooklyn,neykov/incubator-brooklyn,bmwshop/brooklyn,andreaturli/legacy-brooklyn,neykov/incubator-brooklyn,bmwshop/brooklyn,aledsage/legacy-brooklyn,neykov/incubator-brooklyn,aledsage/legacy-brooklyn,bmwshop/brooklyn,neykov/incubator-brooklyn,andreaturli/legacy-brooklyn,andreaturli/legacy-brooklyn,aledsage/legacy-brooklyn,andreaturli/legacy-brooklyn,bmwshop/brooklyn,neykov/incubator-brooklyn,bmwshop/brooklyn,aledsage/legacy-brooklyn