Qual: Clean a lot of code to prepare remove of pre.inc.php

htdocs/about.php

htdocs/admin/pre.inc.php

htdocs/admin/security_other.php

htdocs/boxes.php

htdocs/disabled.php

htdocs/document.php

htdocs/imports/emptyexample.php

htdocs/includes/menus/barre_left/rodolphe.php

htdocs/includes/menus/barre_top/rodolphe.php

htdocs/install/upgrade2.php

htdocs/lib/antispamimage.php

htdocs/lib/functions.lib.php

htdocs/main.inc.php

htdocs/public/agenda/agendaexport.php

htdocs/public/donations/donateurs_code.php

htdocs/public/donations/therm.php

htdocs/public/members/new.php

htdocs/viewimage.php

htdocs/webcal/webcalexport.php