New: Opt-in to delete empty series/season folders

src/NzbDrone.Core/Configuration/ConfigService.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
@@ -161,6 +161,13 @@ namespace NzbDrone.Core.Configuration
             set { SetValue("CreateEmptySeriesFolders", value); }
         }
 
+        public bool DeleteEmptyFolders
+        {
+            get { return GetValueBoolean("DeleteEmptyFolders", false); }
+
+            set { SetValue("DeleteEmptyFolders", value); }
+        }
+
         public FileDateType FileDate
         {
             get { return GetValueEnum("FileDate", FileDateType.None); }