out-of-box usability

[jpfleischer]

cloudmesh-cc can use some fixes so that users can leverage its features out-of-the-box.

for example, if starting a workflow on rivanna for the first time, the workflow immediately fails due to lack of ssh-copy-id.

we can make cloudmesh-cc smart by detecting when the shell asks for the ssh id and then doing the ssh-copy-id for the user.

we can use some beta testers who have never used cloudmesh-cc before, and who have access to rivanna, so that we can find bugs and remove them.