openvidu-testapp: angular-cli and typescript dependencies to latest

openvidu-testapp/package.json

@@ -33,7 +33,7 @@
     "zone.js": "^0.8.14"
   },
   "devDependencies": {
-    "@angular/cli": "1.4.3",
+    "@angular/cli": "1.6.3",
     "@angular/compiler-cli": "^4.2.4",
     "@angular/language-service": "^4.2.4",
     "@types/jasmine": "~2.5.53",
@@ -51,6 +51,6 @@
     "protractor": "~5.1.2",
     "ts-node": "~3.2.0",
     "tslint": "~5.3.2",
-    "typescript": "~2.3.3"
+    "typescript": "2.6.2"
   }
 }