setup.php: use w2p_Core_Setup() functions for remove and install

setup.php

@@ -203,10 +203,7 @@ class CSetupHelpDesk extends w2p_Core_Setup
             return false;
         }
 
-        global $AppUI;
-        $perms = $AppUI->acl();
-
-        return $perms->registerModule('Help Desk', 'helpdesk');
+	return parent::install();
     }
 
     public function remove()
@@ -252,7 +249,8 @@ class CSetupHelpDesk extends w2p_Core_Setup
         $q->addWhere("mod_directory = 'helpdesk'");
         $q->exec();
 
-        return $success;
+	if (!$success) return $success;
+        return parent::remove();
     }
 
     public function upgrade($old_version)
@@ -347,10 +345,8 @@ class CSetupHelpDesk extends w2p_Core_Setup
                 $success = 0;
         }
 
-        global $AppUI;
-        $perms = $AppUI->acl();
 
-        return $perms->registerModule('Help Desk', 'helpdesk');
+        return true;
     }
 
     public function configure()
@@ -366,7 +362,7 @@ class CSetupHelpDesk extends w2p_Core_Setup
         $q = new w2p_Database_Query();
         $sql = "( " .
             " `helpdesk_config` varchar(25) NOT NULL, " .
-            " `helpdesk_value`  varchar(25), " .
+            " `helpdesk_value`  varchar(256), " .
             " PRIMARY KEY  (`helpdesk_config`) " .
             ") ENGINE = MYISAM DEFAULT CHARSET = utf8";
         $q->createTable('helpdesk_config');