mesosphere/marathon — pull request #166 by ConnorDoyle (2014-03-01 08:18:23+00:00)
Title: Versioned apps

- Adds a timestamp version to app JSON
- Updates to apps yield a new app version
- Adds an endpoint to list all versions of an app
- Adds an endpoint to show the detailed app parameters of an app version
- Updating an app with a previous version specified in the JSON body effects a rollback (a new version is created with the specified version's configuration)

**N.B.:** _Currently for review only, please refrain from merging as this lacks docs._