AWS support draft

Fix calling function before declaration

Set Name tags on instances

Hide import-key-pair error

Fix instances names resolution

Implement kube-down for AWS provider

Add cluster validation routines. Make changes according to #1255

Implement post-deployment cluster validation

Set proper master name in userdata scripts

Fix kube-down path in hint

Add getting started for AWS
Update the AWS config.
Merge/rebase w/ Kelsey's cloud formation docs.
Fix docs somewhat, add monitoring hooks.
Merge pull request #2260 from brendandburns/Ch00k-kube-up-aws

Ch00k kube up aws - adapted by brendandburns