chat fixes

update bootstrap tags input
dont allow adding self to chat room

src/socket.io/modules.js

@@ -142,6 +142,9 @@ SocketModules.chats.addUserToRoom = function(socket, data, callback) {
 			if (!uid) {
 				return next(new Error('[[error:no-user]]'));
 			}
+			if (socket.uid === parseInt(uid, 10)) {
+				return next(new Error('[[error:cant-add-self-to-chat-room]]'));
+			}
 			Messaging.addUsersToRoom(socket.uid, [uid], data.roomId, next);
 		}
 	], callback);