- Update internals to be compatible with v4
- Adds multiple encryption mode support. Previously only `xsalsa20_poly1305` was supported. Now `xsalsa20_poly1305_suffix` is also supported.
Note: There is no (nice) way to manually select a mode. The user needn't worry about this however.
- Fixed speaking state bug. When you disconnected from a voice channel while a bot was playing, upon reconnect you would be unable to hear the bot. This was caused by bots not sending their speaking state while transmitting. Bots will now set their speaking state properly when transmitting.
Note: This does not account for sending actual silence, the speaking indicator will still be active.
This is a complete redesign of the old voice code.
A list of major changes is as follows:
* The voice websocket will now automatically reconnect with
exponential back-off just like the regular Client does.
* Removal of the stream player concept.
* Audio now gracefully pauses and resumes when a disconnect is found.
* Introduce a discord.AudioSource concept to abstract streams
* Flatten previous stream player functionality with the
VoiceClient, e.g. player.stop() is now voice_client.stop()
* With the above re-coupling this means you no longer have to
store players anywhere.
* The after function now requires a single parameter, the error,
if any existed. This will typically be None.
A lot of this design is experimental.
