First part of a user guide for GCE in jclouds

"...without passwords. You may not want to do this in a production environment. In order to create a private key without a password for use with the examples, run: ... You can use resulting `gcp-example.pem` file to run the examples."

Can we say something here about what people _would_ want to do in a production environment? E.g. is it possible to run jclouds with GCE with a PEM file that has a password? I suspect users may conclude from this that it's not currently possible to use jclouds & GCE in a production setting.