Can create a new user

app/pods/users/new/new-user-form/component.js

@@ -9,7 +9,15 @@ export default Ember.Component.extend({
       var user = this.get('user');
 
       if (user.get('isDirty')) {
-        user.save();
+        user.save().then(() => {
+          this.sendAction();
+        }).catch(() => {
+          // Manually clean up messages because there is no transition
+          this.get('flashMessages').clearMessages();
+          user.get('errors').forEach((error) => {
+            this.get('flashMessages').error(`${error.attribute.capitalize()} - ${error.message}`);
+          });
+        });
       }
     },
   },