Added error to finalize.

Author: rogelio-o

src/lib/event/eventFinalHandler.ts

@@ -23,7 +23,7 @@ export default function eventFinalHandler(req: IEventRequest, callback: IRawCall
     }
 
     if (callback) {
-      callback.finalize();
+      callback.finalize(err);
     }
   };
 }

src/lib/types/IRawCallback.ts

@@ -7,6 +7,6 @@ export default interface IRawCallback {
 
   send(statusCode: number, headers: {[name: string]: string|string[]}, body: object|Buffer): void;
 
-  finalize(): void;
+  finalize(err?: Error): void;
 
 }