Added a config setting to denote completion of the startup wizard

MediaBrowser.WebDashboard/Html/scripts/WizardFinishPage.js

@@ -0,0 +1,16 @@
+var WizardFinishPage = {
+  
+    onFinish: function() {
+        
+        ApiClient.getServerConfiguration().done(function (config) {
+
+            config.IsStartupWizardCompleted = true;
+
+            ApiClient.updateServerConfiguration(config).done(function() {
+                Dashboard.navigate('dashboard.html');
+            });
+        });
+
+    }
+
+};