Additionally fix what #1761 was supposed to fix (#1777)
Additionally fix what #1761 was supposed to fix (#1777)

* Update .travis.yml

* Update .travis.yml

* msg.author.voice can be None

https://discordpy.readthedocs.io/en/rewrite/api.html#discord.Member.voice

* Update .travis.yml

* Update musicbot/bot.py

* Probably fixes it

Crims101/SymmetraBot,Crims101/SymmetraBot