Refactor waitForMessage to waitForPacket (since it returns a packet) and add a new waitForMessage which return the MessageBase, which makes usage a little tidier with async.

dist/classes/UUID.d.ts

@@ -7,4 +7,5 @@ export declare class UUID {
     setUUID(val: string): boolean;
     toString: () => string;
     writeToBuffer(buf: Buffer, pos: number): void;
+    equals(cmp: UUID | string): boolean;
 }