New content-related REST API endpoints

We've added a few content-related REST API endpoints, which your back-end can use to e.g. look up whether a specific user has seen a specific flow, or to fetch a list of flows that users may start in your app.

You can now read the following resources via the API:

• Content - GET /content - lists all your flows, checklists and launchers.
• Content versions - GET /content_versions - contains the actual contents (such as survey questions and checklist tasks) of content objects in a versioned manner.
• Content sessions - GET /content_sessions - a session is a specific user's journey through a specific flow.

Spoiler: We've partly added this for our upcoming Zapier integration. Ask us if you'd like early access to our Zapier app.