Currently, camunda-bpmn.js is listed as one of the additional tools. This project hasn't been updated in >1 year and has been replaced by bpmn-io/bpmn-js.
- camunda-bpmn is replaced with bpmn.io
- A notification exists that states that bpmn.io is still under development. Similar to the notification here: http://stage.docs.camunda.org/guides/user-guide/#process-engine-process-diagram-visualization