Many bug fixes, found while entering real facility data. Most are quite minor, although there was a functionality change to assignCredits, to support concessions without assigning them to anything other than rent. I've found that there is a glaring problem with charge reversals, which don't work correctly with the collected report. Of course, we're deleting prior disbursements, which obviously needs to be rectified.

git-svn-id: file:///svn-source/pmgr/branches/yafr_20090716@540 97e9348a-65ac-dc4b-aefc-98561f571b83

site/views/units/view.ctp

@@ -87,6 +87,8 @@ if (isset($current_lease['id'])) {
 			  'filter' => array('Lease.id' => $current_lease['id']),
 			  'include' => array('Through'),
 			  'exclude' => array('Customer', 'Lease', 'Unit'),
+			  'sort_column' => 'Effective',
+			  'sort_order'  => 'DESC',
 			  )));
 }