Sindbad~EG File Manager

This files describes API changes in /mod/h5pactivity/*,
information provided here is intended especially for developers.

=== 4.0.3 ===

* The following methods now accept an optional `$currentgroup` parameter in order to better support groups:
  - `\mod_h5pactivity\local\manager::get_active_users_join`
  - `\mod_h5pactivity\local\manager::get_report`
  - `\mod_h5pactivity\local\report\participants` constructor

=== 3.11 ===

* Added mod_h5pactivity\local\manager::get_active_users_join method to query all active
  users from a specific activity, even in a freeze context.