Allow direct URL loads for kubecfg

http:// and https:// URLs will be fetched by the client.

Allows `openshift kube -c "https://raw.githubusercontent.com/GoogleCloudPlatform/kubernetes/master/examples/guestbook/redis-master.json" create pods`
Merge pull request #56 from smarterclayton/add_direct_url_access_to_commands

Merged by openshift-bot