Updated dependencies, added jest, ts-ject, supertest and supporting types.

Added minimum jest configuration to package.json.
Added allowSyntheticDefaultImports to tsconfig.
Added sample e2e test for app controller.

src/modules/app.spec.ts

@@ -0,0 +1,25 @@
+import express from 'express';
+import request from 'supertest';
+import { Test } from '@nestjs/testing';
+import { ApplicationModule } from './app.module';
+
+describe('Basic E2E Test', () => {
+  const server = express();
+
+  beforeAll(async () => {
+    const module = await Test.createTestingModule({
+            modules: [ApplicationModule]
+          })
+          .compile();
+
+    const app = module.createNestApplication(server);
+    await app.init();
+  });
+
+  it('/GET /', () => {
+    return request(server)
+            .get('/')
+            .expect(200)
+            .expect('Hello World!');
+  });
+});