Fixed coupon versionning. Added order versionning behaviour
Merge branch 'master' of https://github.com/thelia/model

Conflicts:
	thelia2_model.mwb
Adde brand management
Generated png & xml
Merge pull request #3 from roadster31/brand

Added brand related tables
Update README.md

Update to current Thelia 2 tools.
Add form_firewall and order_address constraints
	modifié:         schema.xml
	modifié:         thelia2_model.mwb
	modifié:         thelia2_model.png
Merge pull request #7 from lovenunu/add

Add form_firewall and order_address constraints
Added the sales related tables.
Fixed wrong relationship type
Changed 'sales' table name to 'sale'
Merge pull request #8 from roadster31/sales

Added the sales related tables.
Merge pull request #4 from lovenunu/patch-1

Update README.md