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)
I saw the thread about that earlier today but for cloud I think this has deeper ramifications. The client will map to a devconsole project and if we give access to our client, people will be able to use resources in our project without paying. Is there potential for abuse there? e.g running out our quota, etc.