Implemented a mechanism to track customer overpayments (credits). Also implemented a reconciling algorithm, matching payments to charges. Preliminary testing seems to show that it works well. More thorough testing required.

git-svn-id: file:///svn-source/pmgr/branches/yafr_20090716@392 97e9348a-65ac-dc4b-aefc-98561f571b83

site/models/customer.php

@@ -395,7 +395,7 @@ class Customer extends AppModel {
     $ar_transaction_stats += $ar_transaction_stats['LedgerEntry'];
     pr(compact('ar_transaction_stats'));
 
-    $stats = $statement_stats;
+    $stats = $ar_transaction_stats;
     return $stats;
   }