Conflicts:
	htdocs/core/class/commonobject.class.php
	htdocs/product/liste.php

Conflicts:
	htdocs/core/modules/fichinter/doc/pdf_soleil.modules.php
	htdocs/paypal/lib/paypal.lib.php

FIX: dont put a mess with date and datetime extrafield value if already in right format

FIX: hook insertExtraFields must return a returnvalue (0,1,-1)

FIX: pagebreak on fichinter like in other documents

FIX: avoid milestones in margin calculation

Change credential test data in WS demo

Fix: check warehouse on product batch 

Only check warehouse on actions 'create' and 'add'

This reverts commit a06c5b25.

Only check warehouse when on actions 'create' and 'add'

be finished. We keep it as development status.

deleted on project / task deletion

in right format (the bug was in propale/order/invoice extrafields,
mainly visible with 2 datetime extrafields)