bugfixes
- xhr-loader: store & clear on abort the retry timeout (race cond fix) #546
- Comment between EXTINF and segment URL breaks playback #555
- live stream stuck in seeking/idle state on level switch #571
- #EXT-X-START:TIME-OFFSET weird behavior with live/event #572
- Redundant stream failover main to backup #573
improvement
- Add "version" and "type" to level object (master) #548
- Update package.json 'main' to './dist/hls.js' #550
- add parameter forceKeyFrameOnDiscontinuity in hls config #556