Added support for Amazon S3 event notifications.
Added paginators for Aws::ConfigService.
Added support for Amazon Lambda.
Added special handling for stringified booleans to the JSON parser.
Added integration tests for the newest 4 services.

Tests added for:
* `Aws::ConfgService`
* `Aws::CodeDeploy`
* `Aws::Lambda`
* `Aws::KMS`
Bumped version to v2.0.9
Now adding the README updates for supported services to the release commit.
Added eu-central-1 to an Amazon S3 enum value.
Corrected the service name for AWS Lambda.
Added next release section to the changelog. [ci skip]
Minor waiter fix for EC2. [ci skip]
Resolved an issue with global default configuraiton.

The defualt configuration plugin relies on having a list of known
service identifiers that should not be passed along from Aws.config
as options. When autoloading of service clients was added, this
broke.

Restoring default behavior.

Fixes #153
Added links to paginators for Aws::ConfigService and AWS Lambda.
Fixed a regression in Aws::Resources::Batch.
Added minor documentation to an S3 plugin.
Corrected KMS paginators.
Fixed sigv4 signing name for IAM in gov cloud.

Fixes #159
Resolved an issue with getting an Object encrypted with KMS.
No longer using dns addressing for S3::Client#get_bucket_location.
Resolved Aws::S3::Client#put_object_acl issue.

Fixes #160