* upstream/r/8.x: (129 commits)
  Document Security Fix
  Updated Release Notes
  Updated Release Notes and Changelog
  Re-Enable Hostname Verification
  Endtime of segments fixed in the editor
  Support faster playback rates in paella video player
  Build Badge
  Disable Travis CI
  Automatically Update Translations
  Automatically Update Crowdin Keys
  Opencast CI Tests
  Automatically update translation keys (r/7.x)
  Removing duplicate JDK version support bits from the source install docs.  Adding a hard exit on startup if an incorrect JDK is in use.
  JDK Support proposal (2020-11-11) documentation for 8.x
  Removed trailing whitespace from releasenotes
  Updated Release Notes
  Reduce IO Load When Starting a Workflow
  Solves #2034
  Fix unit test for filter date picker time range
  #1987 Admin UI event start filter datepicker timezone patch
  ...