Update dependencies and copyright year (#2436)

- aiohttp 3.5
- websockets 7
- Rapptz/discord.py@700dbb5
- A few others

Signed-off-by: Toby Harradine <tobyharradine@gmail.com>

discord/raw_models.py

@@ -3,7 +3,7 @@
 """
 The MIT License (MIT)
 
-Copyright (c) 2015-2018 Rapptz
+Copyright (c) 2015-2019 Rapptz
 
 Permission is hereby granted, free of charge, to any person obtaining a
 copy of this software and associated documentation files (the "Software"),
@@ -103,7 +103,7 @@ class RawReactionActionEvent:
     message_id: :class:`int`
         The message ID that got or lost a reaction.
     user_id: :class:`int`
-        The user ID who added or removed the reaction.
+        The user ID who added the reaction or whose reaction was removed.
     channel_id: :class:`int`
         The channel ID where the reaction got added or removed.
     guild_id: Optional[:class:`int`]