* provider/aws: Fix hashing on CloudFront certificate parameters
Adding necessary type assertion to values on the viewer_certificate hash
function to ensure that certain fields are indeed not zero string
values, versus simply zero interface{} values (aka nil, as is such for a
map[string]interface{}).
* provider/aws: CloudFront complex structure error handling
Handle errors better on calls to d.Set() in the
aws_cloudfront_distribution, namely in flattenDistributionConfig(). Also
caught a bug in the setting of the origin attribute, was incorrectly
attempting to set origins.
* provider/aws: Pass pointers to set CloudFront primitives
Change a few d.Set() for primitives in aws_cloudfront_distribution and
aws_cloudfront_origin_access_identity to use the pointer versus a
dereference.
* docs: Fix CloudFront examples formatting
Ran each example thru terraform fmt to fix indentation.
* provider/aws: Remove delete retention on CloudFront tests
To play better with Travis and not bloat the test account with disabled
distributions.
Disable-only functionality has been retained - one can enable it with
the TF_TEST_CLOUDFRONT_RETAIN environment variable.
* provider/aws: CloudFront delete waiter error handling
The call to resourceAwsCloudFrontDistributionWaitUntilDeployed() on
deletion of CloudFront distributions was not trapping error messages,
causing issues with waiter failure.
* CloudFront implementation v3
* Update tests
* Refactor - new resource: aws_cloudfront_distribution
* Includes a complete re-write of the old aws_cloudfront_web_distribution
resource to bring it to feature parity with API and CloudFormation.
* Also includes the aws_cloudfront_origin_access_identity resource to generate
origin access identities for use with S3.
Chris Marchesi