v2.0.3

Changed

• Removed --pto_adjustment flag (related to #368).

Fixed

• Use max bitrate in Representation@bandwidth instead of average bitrate for DASH live profile (#376).
• Set Widevine key request content-type to JSON instead of xml (#372).
• Fix default_language not working if 2-char code is used (#371).
• Do not force earliest_presentation_time to 0 for VOD (#303).
• Generate more precise time in Period@duration (#368). This avoids possible
  rounding error in MSE causing frames to be dropped at Period boundary.