Stable release v3.11-r4

While this plugin was already used by multiple universities in production for years, it was never officially released or supported. This will be the first release published in the Moodle plugin directory.

New features:

• Repository instances are linked to a specific Opencast instance. For each OC instance a new repository instance should be created.
• All videos from all series linked to a course are now shown (and not only from the default series)

Unofficial Release v3.11-r3

Support the newest (v3.11-r3) version of tool_opencast

Unofficial Release v3.11-r2

This release should work fine with Moodle 3.11, 3.10 and 3.9.
However, it was not excessively tested.