Split GCE prerequisites for minions and master
Add a backoff policy for failing pods.
Add text about example cluster and clarify pre-requisites.
Merge pull request #1575 from rgooch/docfixes

Docfixes
Use formal error checking to validate a not found err.
Add a resource fit scheduler predicate.  Set sensible defaults.
add coreos setup guides
Merge pull request #1536 from brendandburns/resource

Add in resource fit as a predicate.  Manually set the available resources.
Merge pull request #1561 from brendandburns/sleep

Add some backoff to the scheduler to prevent tight-looping.
Merge pull request #1576 from kelseyhightower/add-coreos-docs

add coreos setup guides
Merge pull request #1577 from brendandburns/fix

Use formal error checking to validate a not found err.
Fix integration test read volume dir error.
Merge pull request #1579 from ddysher/integration-fix

Fix integration test read volume dir error.
kubelet: add --runonce flag, exits after starting pod from the manifest
kubelet: add basic test for runonce