Nzb Url column added.

NzbDrone.Core/Datastore/Migrations/Migration20120414.cs

@@ -0,0 +1,15 @@
+using System.Data;
+using Migrator.Framework;
+
+namespace NzbDrone.Core.Datastore.Migrations
+{
+
+    [Migration(20120414)]
+    public class Migration20120414 : NzbDroneMigration
+    {
+        protected override void MainDbUpgrade()
+        {
+            Database.AddColumn("History", "Url", DbType.String, ColumnProperty.Null);
+        }
+    }
+}