Opus release 1.3-rc2

This is a second release candidate for the upcoming 1.3 release and includes:
- Fixing an issue with bandwidth detection
- Ambisonics support now exabled by default
- Ambisonics now uses families 2 and 3 (instead of experimental 253 and 254)
- Hardening is now enabled by default
Fixes packet parsing for 16-bit CPUs

Without that change, a very long (> 682 ms) illegal packet could trigger
a wrap-around in the test and be accepted as valid.

Only 16-bit architectures (e.g. TI C5x) were affected.
1 file changed