chore: update jest to latest (#213)

* chore: update jest to latest

* test: fix one failing after an update to latest jest

Author: kamilkisiela

package.json

@@ -54,7 +54,7 @@
     "graphql": "^0.8.2",
     "graphql-tag": "^1.1.2",
     "husky": "^0.12.0",
-    "jest": "^17.0.0",
+    "jest": "^18.1.0",
     "reflect-metadata": "^0.1.8",
     "remap-istanbul": "^0.8.4",
     "rimraf": "^2.5.2",

tests/ApolloModule.spec.ts

@@ -36,7 +36,7 @@ describe('ApolloModule', () => {
     const providers = result.providers[1]; // skips APOLLO_PROVIDERS
 
     it('should contain ApolloModule as ngModule', () => {
-      expect(result.ngModule).toBe(ApolloModule);
+      expect(result.ngModule === ApolloModule).toBe(true);
     });
 
     it('should provide a wrapper directly', () => {