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.