* provider/aws: Add DeploymentRollback as a valid TriggerEvent type
* provider/aws: Add auto_rollback_configuration to aws_codedeploy_deployment_group
* provider/aws: Document auto_rollback_configuration
- part of aws_codedeploy_deployment_group
* provider/aws: Support removing and disabling auto_rollback_configuration
- part of aws_codedeploy_deployment_group resource
- when removing configuration, ensure events are removed
- when disabling configuration, preserve events in case configuration is re-enabled
* provider/aws: Add alarm_configuration to aws_codedeploy_deployment_group
* provider/aws: Document alarm_configuration
- part of aws_codedeploy_deployment_group
* provider/aws: Support removing alarm_configuration
- part of aws_codedeploy_deployment_group resource
- disabling configuration doesn't appear to work...
* provider/aws: Refactor auto_rollback_configuration tests
- Add create test
- SKIP failing test for now
- Add tests for build & map functions
* provider/aws: Refactor new aws_code_deploy_deployment_group tests
- alarm_configuration and auto_rollback_configuration only
- add assertions to deployment_group basic test
- rename config funcs to be more easy to read
- group public tests together
* provider/aws: A max of 10 alarms can be added to a deployment group.
- aws_code_deploy_deployment_group.alarm_configuration.alarms
- verified this causes test failure with expected exception
* provider/aws: Test disabling alarm_configuration and auto_rollback_configuration
- the tests now pass after rebasing the latest master branch
* provider/aws: CodeDeploy Deployment Group Triggers
- Create a Trigger to Send Notifications for AWS CodeDeploy Events
- Update aws_codedeploy_deployment_group docs
* Refactor validateTriggerEvent function and test
- also rename TestAccAWSCodeDeployDeploymentGroup_triggerConfiguration test
* Enhance existing Deployment Group integration tests
- by using built in resource attribute helpers
- these can get quite verbose and repetitive, so passing the resource to a function might be better
- can't use these (yet) to assert trigger configuration state
* Unit tests for conversions between aws TriggerConfig and terraform resource schema
- buildTriggerConfigs
- triggerConfigsToMap
