New: App health displayed in UI

src/UI/Health/HealthCollection.js

@@ -0,0 +1,16 @@
+'use strict';
+define(
+    [
+        'backbone',
+        'Health/HealthModel',
+        'Mixins/backbone.signalr.mixin'
+    ], function (Backbone, HealthModel) {
+        var Collection = Backbone.Collection.extend({
+            url  : window.NzbDrone.ApiRoot + '/health',
+            model: HealthModel
+        });
+
+        var collection = new Collection().bindSignalR();
+        collection.fetch();
+        return collection;
+    });