fix of npm run unit, plus begin able to test code that uses promises.

src/Umbraco.Web.UI.Client/package.json

@@ -2,7 +2,7 @@
   "private": true,
   "scripts": {
     "test": "gulp runTests",
-    "unit": "gulp testUnit",
+    "unit": "gulp runUnit",
     "e2e": "gulp testE2e",
     "build": "gulp build",
     "dev": "gulp dev",
@@ -39,7 +39,7 @@
     "moment": "2.22.2",
     "ng-file-upload": "12.2.13",
     "nouislider": "14.1.1",
-    "npm": "6.13.6",
+    "npm": "^6.14.0",
     "signalr": "2.4.0",
     "spectrum-colorpicker": "1.8.0",
     "tinymce": "4.9.10",
@@ -71,7 +71,9 @@
     "gulp-wrap": "0.15.0",
     "gulp-wrap-js": "0.4.1",
     "jasmine-core": "3.5.0",
+    "jasmine-promise-matchers": "^2.6.0",
     "karma": "4.4.1",
+    "karma-chrome-launcher": "^3.1.0",
     "karma-jasmine": "2.0.1",
     "karma-junit-reporter": "2.0.1",
     "karma-phantomjs-launcher": "1.0.4",