FIX : #6747

Conflicts:
	htdocs/core/class/commonobject.class.php
	htdocs/core/modules/commande/doc/pdf_einstein.modules.php
	htdocs/fourn/class/fournisseur.commande.class.php
	htdocs/theme/eldy/style.css.php

Corrected PHP7 warnings for several pages

Fix major issues with local taxes

Fix download delivery and donation document

FIX supplier order line creation with rang = 0

FIX ajax autocomplete on clone

FIX #6614

FIX: length_accounta return variable name

please check to last param "$request_data->fk_remise_except", I couldn't find a corresponding parameter name in the addline() function

Conflicts:
	htdocs/contact/document.php
	htdocs/core/tpl/objectline_create.tpl.php
	htdocs/install/mysql/migration/repair.sql

Fix typo in en_US admin tag

FIX : forgotten parameter for right multicompany use

More fixes regarding localtaxes not being diplayed in generated PDF and vat_src_code not being propagating properly when generating posts from type to type.