Fixed TTS

src/Discord.Net/MessageQueue.cs

@@ -55,6 +55,7 @@ namespace Discord.Net
         internal Message QueueSend(Channel channel, string text, bool isTTS)
         {
             Message msg = new Message(0, channel, channel.IsPrivate ? channel.Client.PrivateUser : channel.Server.CurrentUser);
+            msg.IsTTS = isTTS;
             msg.RawText = text;
             msg.Text = msg.Resolve(text);
             msg.Nonce = GenerateNonce();

src/Discord.Net/Models/Message.cs

@@ -177,7 +177,7 @@ namespace Discord
         public User User { get; }
 
         /// <summary> Returns true if the message was sent as text-to-speech by someone with permissions to do so. </summary>
-        public bool IsTTS { get; private set; }
+        public bool IsTTS { get; internal set; }
 		/// <summary> Returns the state of this message. Only useful if UseMessageQueue is true. </summary>
 		public MessageState State { get; internal set; }
 		/// <summary> Returns the raw content of this message as it was received from the server. </summary>