Remove never-needed return value.

Make some types private.
Fix pointers in AWS CloudFormation template
Add a note indicating breakage in these configs.
Merge pull request #2527 from erictune/cleanup2

Remove unused return value.  Make stuff private.
WIP. Watch boundPods.

Added code to kubelet to create an apiserver-based pod channel and watch boundPods.
Added code to serve boundPods.
WIP.
Abandon approach of watching boudPods.

Watch pods instead.  And services.
WIP.