expense report.

FIX : we have to check if contact doesn't already exist on add_contact

Bad path for document file 

Better fix for future

Fix return method

Conflicts:
	htdocs/compta/facture/list.php
	htdocs/holiday/card.php

Conflicts:
	htdocs/compta/facture/list.php

FIX status were wrong on product for invoice referent list

FIX 7109 - class name already exist for customer payment

FIX edit sociale was emptying label

fix class error (given by eclipse Oxygen version)

FIX holidays postgresql search

This reverts commit 58328d36.

FIX: User id correction on holiday request

Fix column position in PDF when VAT is hidden