0.8.5

Additions:

• Added Message.activity and Message.application (2e8a27d)
• Added an option for manually offsetting the ratelimiter (eb297bb)
• Added userID argument to CommandClient reaction button response generators (94e21a0)
• Added Eris.VERSION constant (a9564f4)

Fixes:

• Fixed ratelimiting for long-running bots (1a318c5)
• Fixed ban event user caching (9c970ed)
• Fixed rich presence caching (119f342)
• Fixed voice receive stream cleanup (1c08797)
• Fixed undefined Message.author crash in CommandClient (a1a3d87)