Make $struct in the *Handler classes customizeable

config.inc.php:
- add $CONF['*_struct_hook'] to modify $struct in the *Handler classes

PFAHandler.php:
- call $CONF['*_struct_hook'] hook

AdminHandler.php, AliasdomainHandler.php, DomainHandler.php:
- remove now outdated TODO notes


git-svn-id: https://svn.code.sf.net/p/postfixadmin/code/trunk@1303 a1433add-5e2c-0410-b055-b7f2511e0802

model/AdminHandler.php

@@ -81,8 +81,6 @@ class AdminHandler extends PFAHandler {
             'created'         => pacol( 0,          0,      1,      'ts',   'created'                      , ''                                 ),
             'modified'        => pacol( 0,          0,      1,      'ts',   'pAdminList_domain_modified'   , ''                                 ), # obsoletes pAdminList_admin_modified
         );
-
-        # TODO: hook to modify $this->struct
     }
 
     # messages used in various functions.