More refactoring stuff

- Add a waitForEventQueue promise, to get rid of the 5 second fudge from testBot.js
- Async'ify testBot.js
- Complete plumbing for Hint's ScriptDialog support (see changes to ScriptDialogEvent.ts and Comms.ts
- Fix: The EventQueue was pausing for 5 seconds every 30 seconds

lib/events/ScriptDialogEvent.ts

@@ -5,10 +5,10 @@ export class ScriptDialogEvent
     ObjectID: UUID;
     FirstName: string;
     LastName: string;
-    ObjectName: Vector3;
+    ObjectName: string;
     Message: string;
     ChatChannel: number;
     ImageID: UUID;
-    Buttons: string;
-    OwnerID: UUID;
+    Buttons: string[];
+    Owners: UUID[];
 }