VoiceChannel user limit support

src/Client/Client.js

@@ -983,6 +983,12 @@ export default class Client extends EventEmitter {
 			.then(dataCallback(callback), errorCallback(callback));
 	}
 
+	// def setChannelUserLimit
+	setChannelUserLimit(channel, limit, callback = (/*err, {}*/) => { }) {
+		return this.internal.setChannelUserLimit(channel, limit)
+			.then(dataCallback(callback), errorCallback(callback));
+	}
+
 	// def updateChannel
 	updateChannel(channel, data, callback = (/*err, {}*/) => { }) {
 		return this.internal.updateChannel(channel, data)

src/Client/InternalClient.js

@@ -1354,6 +1354,26 @@ export default class InternalClient {
 		);
 	}
 
+	// def setChannelUserLimit
+	setChannelUserLimit(channel, limit) {
+		limit = limit || 0;
+
+		if (limit > 99) {
+			return Promise.reject(new Error("User limit cannot be greater than 99"));
+		}
+
+		return this.resolver.resolveChannel(channel).then((channel) => {
+			if (channel.type !== "voice") {
+				return Promise.reject(new Error("Channel must be a voice channel"));
+			}
+
+			return this.apiRequest("patch", Endpoints.CHANNEL(channel.id), true, {
+				user_limit: limit
+			})
+			.then(res => channel.userLimit = limit);
+		});
+	}
+
 	//def updateChannel
 	updateChannel(chann, data) {
 		return this.setChannelNameAndTopic(chann, data.name, data.topic);

src/Structures/VoiceChannel.js

@@ -8,9 +8,14 @@ export default class VoiceChannel extends ServerChannel{
 	constructor(data, client, server){
 		super(data, client, server);
 		this.members = data.members || new Cache();
+		this.userLimit = data.user_limit || 0;
 	}
 
 	join(callback = function () { }) {
 		return this.client.joinVoiceChannel.apply(this.client, [this, callback]);
 	}
+
+	setUserLimit() {
+		return this.client.setChannelUserLimit.apply(this.client, [this, arguments]);
+	}
 }