Removed the trigger file of PAYPAL module that stored data that was not
used by Dolibarr. The trigger event still exists, but if an external
module need action on it, it must provides itself its trigger file.

New : Module Stripe

Update code using new css class

Update code using new css class

Update code using new css class

Fix: when sending a mail the default template used should be the first positioned template

Conflicts:
	htdocs/adherents/class/adherent.class.php
	htdocs/comm/propal/class/propal.class.php
	htdocs/compta/facture/class/facture.class.php
	htdocs/compta/sociales/class/chargesociales.class.php
	htdocs/contrat/class/contrat.class.php