message: release: cut the 5.2.0 release
diff: {
  "private": true,
  "name": "nativescript-angular",
  - "version": "5.1.0",
  + "version": "5.2.0",
  "description": "An Angular renderer that lets you build mobile apps with NativeScript.",
  "homepage": "https://www.nativescript.org/",
  "bugs": "https://github.com/NativeScript/nativescript-angular/issues",
  "@angular/platform-browser": "~5.2.0",
  "@angular/router": "~5.2.0",
  "rxjs": "^5.5.0",
  - "tns-core-modules": "^3.1.0 || >3.4.0-",
  + "tns-core-modules": "^3.4.0 || >4.0.0-",
  "zone.js": "^0.8.4",
  "typescript": "~2.6.2"
  },
  