Major refactor of the Sales Form and Bill controller to make code more readable and less error prone.

The functions now only do one thing.

Tanshu.Accounts.Repository/CustomerBI.cs

@@ -7,18 +7,11 @@ namespace Tanshu.Accounts.Repository
 {
     public class CustomerBI : UnitOfWork<Customer>
     {
-        public IList<Customer> List(Dictionary<string, string> filter)
+        public new IList<Customer> List()
         {
             return _session.QueryOver<Customer>()
-                .WhereRestrictionOn(x => x.Name).IsLike(string.Format("%{0}%", filter["Universal"]))
+                .OrderBy(x => x.Name).Asc
                 .List();
         }
-        public static IList<Customer> StaticList(Dictionary<string, string> filter)
-        {
-            using (var bi = new CustomerBI())
-            {
-                return bi.List(filter);
-            }
-        }
     }
 }