Allow usage of analytics adapter (#2327)

* Allow usage of analytics adapter

* Use promises in controller

src/Controllers/AnalyticsController.js

@@ -0,0 +1,28 @@
+import AdaptableController from './AdaptableController';
+import { AnalyticsAdapter } from '../Adapters/Analytics/AnalyticsAdapter';
+
+export class AnalyticsController extends AdaptableController {
+  appOpened(req) {
+    return this.adapter.appOpened(req.body, req).then(
+      function(response) {
+        return { response: response };
+      }).catch((err) => {
+        return { response: {} };
+      });
+  }
+
+  trackEvent(req) {
+    return this.adapter.trackEvent(req.params.eventName, req.body, req).then(
+      function(response) {
+        return { response: response };
+      }).catch((err) => {
+        return { response: {} };
+      });
+  }
+
+  expectedAdapterType() {
+    return AnalyticsAdapter;
+  }
+}
+
+export default AnalyticsController;