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* feature:Configuration: Add a new ``configure`` command that allows users to interactively specify configuration values (pull request 455)
* feature:``aws emr``: Add support for new EMR APIs, termination of specific cluster instances, and unlimited EMR steps
* feature:``aws cloudfront``: Update Amazon CloudFront command to the 2013-09-27 API version
* bugfix:``aws ec2``: Fix issue where Expires timestamp in bundle-instance policy is incorrect (issue 456)
* bugfix:HTTP: The requests library is now vendored in botocore (at version 2.0.1)
* bugfix:Auth: Fix an issue where timestamps used for Signature Version 4 weren't being refreshed (boto/botocore162)