release: cut the 5.2.0 release

Author: vchimev

nativescript-angular/package.json

@@ -1,7 +1,7 @@
 {
   "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",
@@ -52,7 +52,7 @@
     "@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"
   },