Rename GuildRegion to VoiceRegion.

This naming makes more sense since voice regions are not a guild
exclusive concept.

discord/guild.py

@@ -37,7 +37,7 @@ from .permissions import PermissionOverwrite
 from .colour import Colour
 from .errors import InvalidArgument, ClientException
 from .channel import *
-from .enums import GuildRegion, Status, ChannelType, try_enum, VerificationLevel, ContentFilter
+from .enums import VoiceRegion, Status, ChannelType, try_enum, VerificationLevel, ContentFilter
 from .mixins import Hashable
 from .user import User
 from .invite import Invite
@@ -72,7 +72,7 @@ class Guild(Hashable):
         A list of :class:`Role` that the guild has available.
     emojis
         A tuple of :class:`Emoji` that the guild owns.
-    region: :class:`GuildRegion`
+    region: :class:`VoiceRegion`
         The region the guild belongs on. There is a chance that the region
         will be a ``str`` if the value is not recognised by the enumerator.
     afk_timeout: int
@@ -195,7 +195,7 @@ class Guild(Hashable):
             self._member_count = member_count
 
         self.name = guild.get('name')
-        self.region = try_enum(GuildRegion, guild.get('region'))
+        self.region = try_enum(VoiceRegion, guild.get('region'))
         self.verification_level = try_enum(VerificationLevel, guild.get('verification_level'))
         self.explicit_content_filter = try_enum(ContentFilter, guild.get('explicit_content_filter', 0))
         self.afk_timeout = guild.get('afk_timeout')
@@ -581,7 +581,7 @@ class Guild(Hashable):
             Only PNG/JPEG supported. Could be ``None`` to denote removing the
             splash. Only available for partnered guilds with ``INVITE_SPLASH``
             feature.
-        region: :class:`GuildRegion`
+        region: :class:`VoiceRegion`
             The new region for the guild's voice communication.
         afk_channel: :class:`VoiceChannel`
             The new channel that is the AFK channel. Could be ``None`` for no AFK channel.