Use native exec support in docker instead of execing nsinit in kubelet.
Add read-only, rate limited endpoint
Add basic authorization.

Added basic interface for authorizer implementations.
Added default "authorize everything" implementation.
Added authorization checks in each REST handler routine.
Added tests that these routines return forbidden error code
when the authorizer implementation denies access.
Rename
ListenAndServe on Kubelet server should be a fatal error
Add a "201" walkthrough.
Fix some links...
Fix tests.
Add a link to k8s-201.
Fix typos
Add basic authorization.

Added basic interface for authorizer implementations.
Added default "authorize everything" implementation.
Added authorization checks in each REST handler routine.
Added tests that these routines return forbidden error code
when the authorizer implementation denies access.
Style fixes.