4.0.0

• Add ability to grab waveform (audio-only) or video frame data using exportImage (#417)
• Fix file extension for video/x-matroska mime-type (#464, #469)
• Fix milliseconds in formatTime (#443)
• Ask again for device permissions in Firefox when user cleared them manually (#468)
• Fixed missing error handler for microphone permissions in audio/screen mode (#463)
• Move documentation to website (#472)
• Bump required version for:
  • video.js (7.0.5 or newer)
  • videojs-wavesurfer (3.2.0 or newer)
  • recordrtc (5.6.1 or newer)
• Add compatibility for video.js 7.7.6 and newer (#465)
• Fix mime-type for lamejs plugin

Backwards-incompatible changes (when upgrading from a previous version):

• Configuration for microphone/audio-only has changed (due to videojs-wavesurfer upgrade):
  • Specify backend: 'WebAudio' instead of src: 'live'
  • Enable the wavesurfer.js microphone plugin using the plugins object of the wavesurfer plugin config