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.
Add an IPAllocator type
Add a flag-compatible wrapper for net.IPNet
Move ErrorList to util
Add a util/exec interface for testing execs.
Add a pkg for iptables support

This makes iptables an injectable dependency.  The test for this started off
simple, but got a bit out of hand.  It's starting to become a mocking
framework.
Use '=' for flags or else parsing gets confused sometimes
Core support for ip-per-service
Print portal IP in kubecfg
Better handling of unbound pods.

A small collection of tweaks to better handle pods when they are not currently
bound to a host.