* Add aws/core.py function to check for specific AWS error codes
* Use sys.exc_info to get exception object if it isn't passed in
* Allow catching exceptions with is_boto3_error_code
* Replace from_code with is_boto3_error_code
* Return a type that will never be raised to support stricter type comparisons in Python 3+
* Use is_boto3_error_code in aws_eks_cluster
* Add duplicate-except to ignores when using is_boto3_error_code
* Add is_boto3_error_code to module development guideline docs
* aws_eks: New module for managing AWS EKS
aws_eks module is used for creating and removing EKS clusters.
Includes full test suite and updates to IAM policies to enable it.
* Clean up all security groups
* appease shippable
* Rename aws_eks module to aws_eks_cluster
