Conflict with ModSecurity solved.

When ModSecurity is enabled on apache server then "scandir" is forbidden word. When changing numbering model then you will find following error in apache log: 
ModSecurity: Access denied with code 403 (phase 2). Pattern match "(?i)(?:\\\\b(?:f(?:tp_(?:nb_)?f?(?:ge|pu)t|get(?:s?s|c)|s(?:ession_start|candir)
I have changed "scandir" to "scan_dir".

htdocs/admin/facture.php

@@ -42,7 +42,7 @@ if (! $user->admin) accessforbidden();
 $action = GETPOST('action','alpha');
 $value = GETPOST('value','alpha');
 $label = GETPOST('label','alpha');
-$scandir = GETPOST('scandir','alpha');
+$scandir = GETPOST('scan_dir','alpha');
 $type='invoice';
 
 
@@ -380,7 +380,7 @@ foreach ($dirmodels as $reldir)
                             }
                             else
                             {
-                                print '<a href="'.$_SERVER["PHP_SELF"].'?action=setmod&value='.preg_replace('/\.php$/','',$file).'&scandir='.$module->scandir.'&label='.urlencode($module->name).'" alt="'.$langs->trans("Default").'">'.img_picto($langs->trans("Disabled"),'switch_off').'</a>';
+                                print '<a href="'.$_SERVER["PHP_SELF"].'?action=setmod&value='.preg_replace('/\.php$/','',$file).'&scan_dir='.$module->scan_dir.'&label='.urlencode($module->name).'" alt="'.$langs->trans("Default").'">'.img_picto($langs->trans("Disabled"),'switch_off').'</a>';
                             }
                             print '</td>';
 
@@ -566,7 +566,7 @@ foreach ($dirmodels as $reldir)
 	                            else
 	                            {
 	                                print "<td align=\"center\">\n";
-	                                print '<a href="'.$_SERVER["PHP_SELF"].'?action=set&value='.$name.'&scandir='.$module->scandir.'&label='.urlencode($module->name).'">'.img_picto($langs->trans("SetAsDefault"),'switch_off').'</a>';
+	                                print '<a href="'.$_SERVER["PHP_SELF"].'?action=set&value='.$name.'&scan_dir='.$module->scandir.'&label='.urlencode($module->name).'">'.img_picto($langs->trans("SetAsDefault"),'switch_off').'</a>';
 	                                print "</td>";
 	                            }
 
@@ -578,7 +578,7 @@ foreach ($dirmodels as $reldir)
 	                            }
 	                            else
 	                            {
-	                                print '<a href="'.$_SERVER["PHP_SELF"].'?action=setdoc&value='.$name.'&scandir='.$module->scandir.'&label='.urlencode($module->name).'" alt="'.$langs->trans("Default").'">'.img_picto($langs->trans("SetAsDefault"),'off').'</a>';
+	                                print '<a href="'.$_SERVER["PHP_SELF"].'?action=setdoc&value='.$name.'&scan_dir='.$module->scandir.'&label='.urlencode($module->name).'" alt="'.$langs->trans("Default").'">'.img_picto($langs->trans("SetAsDefault"),'off').'</a>';
 	                            }
 	                            print '</td>';