bugfixes
- FRAG_CHANGED event not fired always. #1072
- Do not allow frag.start to be negative #1083
- inputTimeScale is always undefined for ID3 tracks #1093
- Stuck or a/v async after interstitched advert #1081
- Concurrent seeking and level change corrupts fragment cache #1094
- Incorrect Audio/Video sync - Live alternative audio #1078
improvement
- Feed ID3 metadata into textTracks #1065 #725
- Bandwidth estimate added to FRAG_BUFFERED event data stats #1080