marcosgdf-task-1793

Conflicts:
	ChangeLog
	htdocs/margin/lib/margins.lib.php

(invoice, proposal, order...)

Conflicts:
	htdocs/accountancy/customer/card.php
	htdocs/accountancy/journal/sellsjournal.php
	htdocs/admin/menus.php
	htdocs/fourn/commande/card.php
	htdocs/install/check.php

Bad var

Required because we discovered, during beta, serious bugs into some
databases system loosing data.

it exists, it is no more a draft", so by default we don't need this
permissions (it is same than create). We keep "validate" permissions as
an "advanced" permission only.

New: Added Extrafields for Supplier invoice lines and Supplier order lines

Updated and revamped readme

Correct link & typo

Added contributing guidelines.

FIXED Accounting module - Align integrate core version & module version 3.6

Fixed error management
Fixed rendering country must be same for all tabs.

Fixed: Translation