DeployClient displays a limited amount of information on failure

[ghost]

The DeployClient writes to the console output only the number of modules that have failed. The session object also contains the list of modules that failed and why they did so. The commandline output from the deploy client should be improved to report these additional bits of information.

[Swimburger]

When installation fails for me, the response is null and a nullreference exception occurs. No information why the installation failed. This information would be very valuable indeed. Currently I go back to the classic DNN way to install a module, to debug why it's failing.