[opus] opusfile 0.2 release

[Ralph Giles]

We've made a new release of Tim's opusfile library.

Like libvorbisfile for Vorbis files, libopusfile provides a high-level
API for decoding and seeking within .opus files.

Changes since the previous release:

- Accept valid SSL certificates.
- Various build and packaging fixes.

The library is functional, but there are likely issues
we didn't find in our own testing. Please give feedback
in #opus on irc.freenode.net or on this list.

You can download the source code here:
http://downloads.xiph.org/releases/opus/opusfile-0.2.tar.gz

Windows binaries (with HTTP support disabled) are here:
https://ftp.mozilla.org/pub/mozilla.org/opus/win32/opusfile-0.2-win32.zip

Thanks to everyone who contributed to the release.

 -r