We now enable the final_snapshot of aws_rds_cluster by default. This is
a continuation of the work in #11668
```
% make testacc TEST=./builtin/providers/aws TESTARGS='-run=TestAccAWSRDSCluster_takeFinalSnapshot'
==> Checking that code complies with gofmt requirements...
go generate $(go list ./... | grep -v /terraform/vendor/)
2017/02/04 13:19:52 Generated command/internal_plugin_list.go
TF_ACC=1 go test ./builtin/providers/aws -v -run=TestAccAWSRDSCluster_takeFinalSnapshot -timeout 120m
=== RUN TestAccAWSRDSCluster_takeFinalSnapshot
--- PASS: TestAccAWSRDSCluster_takeFinalSnapshot (141.59s)
PASS
ok github.com/hashicorp/terraform/builtin/providers/aws 141.609s
```
* Importing v7.0.1 of the SDK
* Configuring the Container Service Client
* Scaffolding the Container Service resource
* Scaffolding the Website documentation
* Completing the documentation
* Acceptance Tests for Kubernetes Azure Container Service
* DCOS / Swarm tests
* Parsing values back from the API properly
* Fixing the test
* Service Principal can be optional. Because of course it can.
* Validation for the Container Service Count's
* Updating the docs
* Updating the field required values
* Making the documentation more explicit
* Fixing the build
* Examples for DCOS and Swarm
* Removing storage_uri for now
* Making the SSH Key required as per the docs
* Resolving the merge conflicts
* Removing the unused error's
* Adding Hash's to the schema's
* Switching out the provider registration
* Fixing the hash definitions
* Updating keydata to match
* Client Secret is sensitive
* List -> Set
* Using the first item for the diagnostic_profile
* Helps if you actually update the type
* Updating the docs to include the Computed fields
* Fixing comments / removing redundant optional checks
* Removing the FQDN's from the examples
* Moving the Container resources together