Working on validation for forms, issues with server side, not sure how to post back model with AJAX submit, yet.

Split out settings model to support validation.

NzbDrone.Web/Models/QualityModel.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
 using System.Linq;
 using System.Web;
 using System.Web.Mvc;