update cloud_config with instructions on required changes and add network.md, correct links in quick_start
clean up formatting
attempting in document relative link
adding one more hint for fusion users
Update coreos_cloud_config.md

Correcting relative link
Update networking.md

adding @jeinwei's experiences
Use native exec support in docker instead of execing nsinit in kubelet.
Rackspace - Switch to CoreOS for standard cluster

The Rackspace setup for Kubernetes now leverages CoreOS instead of Ubuntu. We've dropped Salt completely for our cluster.
Add Rackspace to build/release.sh

Updates to the build/release.sh scripts to upload build binaries to
Cloud Files.
remove hardcoded cloudfiles path and fix PORTAL_NET
Migrate Rackspace upload scripts to util.sh

The functions to upload built k8s tars to Cloud Files were incorrectly
placed in build/common.sh. These have been migrated to
cluster/rackspace/util.sh
Remove extra newline and update comments in util.sh
Flush data periodically instead of their buffering
Handle auth files with BearerToken sections.
ListenAndServe on Kubelet server should be a fatal error
Implementing Flush method to httplog
Add a "201" walkthrough.
Merge pull request #1924 from brendandburns/docs

Add a "201" walkthrough.
Fix some links...
Fix tests.