Fix: add generic doc and use doc dir instead pdf

Conflicts:
	htdocs/core/modules/livraison/pdf/pdf_typhon.modules.php
	htdocs/livraison/class/livraison.class.php
Fix: remove develop code
Fix: uniformize code
Fix: broken feature (hook)
Fix: add source template
Fix: add possibility to use element id
New: add possibility to define a custom error message