don't require mime-type on AdaptationSet and implement proper baseUrl handling
added logging
- fix indexRange handling for proper DASH content
- allow a superfluous extra byte on Atom parsing to remain compatible to Google
- base fragment (chunk) loading and parsing on actual last sidx byte
- implement senc box parsing and substitute proprietary Google cencAuxData with if if available
- find first chunk even if first pts > 0
implement Widevine CENC for DRMtoday, add castLabs sample videos