know if value is defined (and not to know if value is null), we must
keep the isset.

develop

Conflicts:
	htdocs/core/lib/functions2.lib.php
	htdocs/install/lib/repair.lib.php
	htdocs/install/mysql/migration/3.2.0-3.3.0.sql

a condition (i did not understand what it means and goal, i'm afraid
other users should not understand too).

Develop

send

 - Correct indentation

$_SESSION['dol_message'] for specific message when a page is reloading

Fix: strict mode be back