aws / aws-cli / 1603

89%

Pull #1167

travis-ci

Use CloudTrail's regionalized policy templates

This change switches away from always using an S3 bucket in `us-west-2`
to fetch CloudTrail policy information for S3 and SNS when setting up
new buckets/topics and instead uses the `awscloudtrail-policy-REGION`
regionalized buckets. It also updates the policy version to use the
most recent release.

Tests are updated and a couple new ones make sure the regionalized
buckets are used.

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