modified naming scheme. main collection/repo name changed from google-gc...

Changed repo name from google-gcloud to google-cloud. elements changed from gcloud-* to google-cloud-*.
(idea suggested by ericbidelman)
Ok. Makes sense not to include it for cloud then.  Is there any way people can see a live demo in the future? That's what I'm after, but we don't have to figure that out now.