The source project of this merge request has been removed.
Upgrade Doorkeeper from 2.2.2 to 3.1.0
I’d rather upgrade one major version at a time, so Doorkeeper needs to be upgraded to 3.x before it can be upgraded to 4.x (which includes Rails 5 support).
Changelog: https://github.com/doorkeeper-gem/doorkeeper/blob/master/NEWS.md#310
Working toward #14286 (closed).
cc: @rspeicher :)