Announcing shaka-packager v2.5.0

[kqy...@google.com]

We are pleased to announce the release of shaka-packager v2.5.0.

This is a feature release. Here are the highlights:

• Support HTTP PUT to upload packaging outputs to cloud (#149).
• Support different IVs for each track (#543).
• Support dash_only and hls_only parameters (#651). 
• Support Dolby DD+JOC (#753).
  
• Support AC-4 codec (#754).
• Support more text input and output formats, including DVB-SUB input (#832) and TTML in MP4 output (#87).
• Fixed a number of DASH / HLS spec compliance issues (#564, #751, #755, #816).

Please see the CHANGELOG for a full list of changes.

Thanks to everyone who has contributed to Shaka Packager to make this release possible!

Enjoy!