Merge pull request #3603 from chrootsu/sockjs-node-connection-id

Added the Connection.id property to sockjs-node definitions

sockjs-node/sockjs-node.d.ts

@@ -45,6 +45,7 @@ declare module "sockjs" {
         prefix: string;
         protocol: string;
         readyState: number;
+        id: string;
 
         close(code?: string, reason?: string): boolean;
         destroy(): void;