Cash Payment plugin is tested and working. Added new features to the payment superclass to restrict who can use payment gateways based on their group memberships. Fixed some lingering Commerce system bugs.

lib/WebGUI/Commerce/Payment.pm

@@ -102,6 +102,13 @@ sub configurationForm {
 		-value	=> $self->enabled,
 		-label	=> $i18n->get('enable'),
 		);
+	$f->group(
+		-name	=> $self->prepend('whoCanUse'),
+		-value 	=> [1],
+		-label 	=> 'Who Can Use?',
+		-hoverHelp => 'Members belonging to this group will see this payment gateway as a choice at the payment gateway selection screen during checkout.'
+		);
+
 	$f->raw($form);
 
 	return $f->printRowsOnly;