Enables Dapple (automated deployments).
Enables Dapple (automated deployments).

_This PR was auto-generated._

This updates the `circle.yml` file to do automated deployments on `master` branch builds. These automated deployments target `clever-dev` and `production` environments.

The deploy strategies used in the PR are:

- `clever-dev` environment: `no-confirm-deploy`
- `production` environment: `confirm-then-deploy`

If you would prefer a more conservative deploy strategy, it's also possible to use `canary-confirm-deploy`. For more details see: https://clever.atlassian.net/wiki/spaces/ENG/pages/228393060/Deployment+Strategies+Dapple

If this app doesn't need automated deployments or is deployed in an unusual way (e.g. a template, a test app, an ECS system container), feel free to close this PR as irrelevant.

If you have questions, please ask here or in #oncall-infra.

Clever/elasticsearch-toolbox