Fixes the custom field sorting, no longer has a sub query for order by, now supports both mysql and sqlce, adds a unit test (should add more though)

src/Umbraco.Core/Persistence/SqlSyntax/SqlCeSyntaxProvider.cs

@@ -208,7 +208,6 @@ ORDER BY TABLE_NAME, INDEX_NAME");
         
 
         public override string DropIndex { get { return "DROP INDEX {1}.{0}"; } }
-
         
     }
 }