Integrate builds in openshift origin

Merge of build work into origin repository. Includes API client for origin and k8s.
The OSClient is for the openshift specific methods kubeclient.Client is for base k8s methods. Because Client embeds both, then you get a unified client that can work with both base k8s resources and openshift resources. For the latest on this, look at pmorie's pull: https://github.com/openshift/origin/pull/46