Latest gamification documentation

[sergeByishimo]

Where can I find the latest gamification module documentation, especially Program action events?
It looks likes actions are linked to events like Tasks, Github, Activity Stream, ...

1. What triggers the action points to be rewarded? how does the system (eXo) know a task has been completed? or Github pull request has been created?
2. In which interface points earned are transferred to each user's wallet?