No Opus support

[Rovanion]

The Internet Engineering Task Force (IETF) standard for audio Opus [0] is not supported by Phaser. Even though Firefox, Chrome, Opera and Firefox for Android [1] currently implements the codec Phaser won't load it on those platforms.

For example in my code I have the following statement:

    this.load.audio('funtime', ['assets/sound/super-happy-fun-time.opus'], true);

Which results in the following warning:

Phaser.Loader error loading file: funtime from URL null

[0] https://en.wikipedia.org/wiki/Opus_%28audio_format%29
[1] http://caniuse.com/opus

[photonstorm]

Phaser will happily load and play audio using the Opus codec if wrapped in an ogg container, the most common method of delivering opus files. We can add support for direct opus file formats as well in the next version.

[Rovanion]

That sounds great!

[photonstorm]

Done.