Fix: Fix on PHPUnit tests

htdocs/compta/facture/class/facture.class.php

htdocs/core/class/notify.class.php

test/AdherentTest.php

test/BuildDocTest.php

test/CommandeTest.php

test/CommonObjectTest.php

test/CompanyBankAccountTest.php

test/ContratTest.php

test/DateLibTest.php

test/FactureTest.php

test/MyTestSuite.php

test/PropalTest.php

test/UserGroupTest.php

test/UserTest.php