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/enums.py

@@ -3,7 +3,7 @@
 """
 The MIT License (MIT)
 
-Copyright (c) 2015-2017 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"),
@@ -30,6 +30,7 @@ __all__ = [
     "ChannelType",
     "MessageType",
     "VoiceRegion",
+    "SpeakingState",
     "VerificationLevel",
     "ContentFilter",
     "Status",
@@ -91,6 +92,16 @@ class VoiceRegion(Enum):
         return self.value
 
 
+class SpeakingState(IntEnum):
+    none = 0
+    voice = 1
+    soundshare = 2
+    priority = 4
+
+    def __str__(self):
+        return self.name
+
+
 class VerificationLevel(IntEnum):
     none = 0
     low = 1