Split it into a core exporter, and an extended one that adds information about the plan.
Also
* Remove userid from grade_competency_in_plan function (redundant)
* Improve the signature of list_evidence so it can handle completed plans (later)
* Rename read_user_competency_summary to data_for_user_competency_summary_in_plan
* Handle completed plans (list user_competency_plan as well as user_competency)
* Remove user_can_see_details_cap handling - if you can see the users plan you can see the user
* Pass final scaleconfiguration in the competency_summary_exporter
* Add docs comments to new templates
1. The competencies tree should open with all nodes initially collapsed
(unless there is less than 20 results, in which case they should all be expanded)
2. When the tree is refreshed, all previously selected nodes should be remembered
and the tree expanded to that point.
3. While the tree is reloading - there should be a "spinner"
Damyon Wiese