New features

• Add MP3 audio codec playback support (except IE11/Edge)
• Support HTTP FLV live stream on new version of Microsoft Edge (15.15048+)
• Support 301/302 redirected url reuse, report redirection to statisticsInfo

Improve & bugfix

• Fix FetchStreamLoader Early-Eof judgement bug
• Fix WebSocket URL judgement bug
• Relax restrictions in FLV header
• Allow multiple SPS PPS in AVCDecoderConfigurationRecord structure