fixed some tests, cleaned up root folders.

NzbDrone.Core/RootFolders/RootFolder.cs

@@ -1,20 +1,16 @@
 using System.Collections.Generic;
 using NzbDrone.Core.Datastore;
-using PetaPoco;
+using Sqo.Attributes;
 
 namespace NzbDrone.Core.RootFolders
 {
-
-    [TableName("RootDirs")]
-    [PrimaryKey("Id", autoIncrement = true)]
     public class RootFolder : BaseRepositoryModel
     {
         public string Path { get; set; }
 
-        [ResultColumn]
+        [Ignore]
         public ulong FreeSpace { get; set; }
 
-        [Ignore]
         public List<string> UnmappedFolders { get; set; }
     }
 }