provision IAM credentials for S3 access
update knife config to enable cloudformation IAM capability
[cloudformation] move chef user data into a registry item
[cloudformation] update chef metadata registry to retrieve encrypted data bag secret from s3
[cloudformation] whitespace
[cloudformation] change base bucket name to match existing bucket naming style
[cloudformation] add instance iam metadata to registry
[cloudformation] update launch_configuration dynamic to use iam metadata from registry
Merge pull request #3 from signifyd/feature/cloudformation-s3

Cloudformation Enhancements
[cloudformation] fetch github ssh key from s3 bucket instead of from an environment variable
Merge pull request #5 from signifyd/fix/github_key_from_s3

[cloudformation] fetch github ssh key from s3 bucket instead of env var
remove invalid comments from json roles
add chef_type and json_class to json roles
untabify roles
[cloudformation] first pass at retrieving platform artifact from existing s3 builds
[platform] add resource to enable upstart service
[platform] remove staging recipe from role run list
[cloudformation] updates for platform from s3
[cloudformation] re-number commands in chef metadata

this makes it easier for us to shim other commands into the alphabetical
command run order
[cloudformation] style cleanup