First pass at a charge waiver implementation. It hasn't been tested but for a tiny bit.

git-svn-id: file:///svn-source/pmgr/branches/yafr_20090716@471 97e9348a-65ac-dc4b-aefc-98561f571b83

db/schema.sql

@@ -880,7 +880,8 @@ INSERT INTO `pmgr_accounts` (`type`, `name`, `payments`, `refunds`)
   ('ASSET',      'Money Order',       1, 0),
   ('ASSET',      'ACH',               1, 0),
   ('ASSET',      'Closing',           0, 0), -- REVISIT <AP>: Temporary
-  ('EXPENSE',    'Concession',        1, 0);
+  ('EXPENSE',    'Concession',        1, 0),
+  ('EXPENSE',    'Waiver',            0, 0);
 INSERT INTO `pmgr_accounts` (`type`, `name`, `refunds`, `deposits`)
   VALUES
 -- REVISIT <AP>: 20090710 : We probably don't really want petty cash depositable.