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.ts

@@ -0,0 +1,39 @@
+import { Injectable, Inject } from 'ng-metadata/core';
+import { UtilService } from './util.service';
+
+
+@Injectable(UtilService.name)
+export class UtilServiceImpl implements UtilService {
+
+  constructor(@Inject('$sanitize') private $sanitize: ng.sanitize.ISanitizeService) {
+
+  }
+
+  public isAdBlockEnabled(callback: (isEnabled: boolean) => void): void {
+
+  }
+
+  public isEmailAddress(str: string): boolean {
+    return null;
+  }
+
+  public getMarkedDown(str: string): string {
+    return null;
+  }
+
+  public getFirstMarkdownLineAsText(commentString: string, placeholderNeeded: boolean): string {
+    return null;
+  }
+
+  public escapeHtmlString(text: string): string {
+    return null;
+  }
+
+  public getRestUrl(args: any[]): string {
+    return null;
+  }
+
+  public textToSafeHtml(text: string): string {
+    return null;
+  }
+}