Use ng-metadata as a Backport of Angular 2+ API (#2486)

* starting UtilService refactor

* pre find-replace angular.module('quay') => angular.module('QuayModule')

* successfully switched to ng-metadata for backported Angular2 API

* working with parent component reference in child

* fixing @Output to use EventEmitter

* fixed @Output events for custom git trigger

* more fixes

* refactored QuayPages module for backwards-compatibility

* reinitialized test.db

* use minified libraries

* replaced references for angular-ts-decorators

* fixed ng-show

static/js/services/util/util.service.impl.spec.ts

@@ -0,0 +1,40 @@
+import { UtilServiceImpl } from './util.service.impl';
+
+
+describe("UtilServiceImpl", () => {
+  var utilServiceImpl: UtilServiceImpl;
+  var $sanitizeMock: ng.sanitize.ISanitizeService;
+
+  beforeEach(() => {
+    $sanitizeMock = jasmine.createSpy('$sanitizeSpy').and.returnValue("");
+    utilServiceImpl = new UtilServiceImpl($sanitizeMock);
+  });
+
+  describe("isAdBlockEnabled", () => {
+    // TODO
+  });
+
+  describe("isEmailAddress", () => {
+    // TODO
+  });
+
+  describe("getMarkedDown", () => {
+    // TODO
+  });
+
+  describe("getFirstMarkdownLineAsText", () => {
+    // TODO
+  });
+
+  describe("escapeHtmlString", () => {
+    // TODO
+  });
+
+  describe("getRestUrl", () => {
+    // TODO
+  });
+
+  describe("textToSafeHtml", () => {
+    // TODO
+  });
+});