aws_api_gateway_integration_response
This continues the work carried out in #10696
```
% make testacc TEST=./builtin/providers/aws TESTARGS='-run=TestAccAWSAPIGatewayIntegrationResponse_'
==> Checking that code complies with gofmt requirements...
go generate $(go list ./... | grep -v /terraform/vendor/)
2017/01/03 14:18:46 Generated command/internal_plugin_list.go
TF_ACC=1 go test ./builtin/providers/aws -v
-run=TestAccAWSAPIGatewayIntegrationResponse_ -timeout 120m
=== RUN TestAccAWSAPIGatewayIntegrationResponse_basic
--- PASS: TestAccAWSAPIGatewayIntegrationResponse_basic (57.33s)
PASS
ok github.com/hashicorp/terraform/builtin/providers/aws57.352s
```
* provider/aws: Re-implement api gateway parameter handling
this PR cleans up some left overs from PR #4295, namely the parameter handling.
now that GH-2143 is finally closed this PR does away with the ugly
`request_parameters_in_json` and `response_parameters_in_json` hack.
* Add deprecation message and conflictsWith settings
following @radeksimko s advice, keeping the old code around with a deprecation
warning.
this should be cleaned up in a few releases
* provider/aws: fix missing append operation
* provider/aws: mark old parameters clearly as deprecated
* provider/aws work around #8104
following @radeksimko s lead
* provider/aws fix cnp error
Radek Simko