Add signatureVersion configuration option
Rewrite global endpoint checks to use function on service class
Update S3 endpoint translation for V4 regions
Send x-amz-content-sha256 in SigV4 signed S3 requests
Copy access key ID to body when signing EC2 requests
Update signable header logic and check for cached SHA256 of body in x-amz-content-sha256 before computing
Add support for codec options and pagination in AWS.ElasticTranscoder
Update AWS.CloudTrail API
Update AWS.CloudFront API to 2013-11-11
Fix incorrect pagination configuration for S3.listParts()
Initial capabilities notice header
Add URL to banner link
Add support for China (Beijing) Region (cn-north-1).

Conflicts:
	lib/service.js
Update CloudFront API versions