Add messaging widget

src/web/app/common/scripts/messaging-index-stream-manager.ts

@@ -0,0 +1,20 @@
+import StreamManager from './stream-manager';
+import Connection from './messaging-index-stream';
+
+export default class ServerStreamManager extends StreamManager<Connection> {
+	private me;
+
+	constructor(me) {
+		super();
+
+		this.me = me;
+	}
+
+	public getConnection() {
+		if (this.connection == null) {
+			this.connection = new Connection(this.me);
+		}
+
+		return this.connection;
+	}
+}