bug at the time of the payment

if stock=0 and checkAvailableStock=0
Improved shipping zone configuration ergonomy
Merge branch 'master' into shipping-zones-fix
remove assets for hook test, managing them with composer
Merge pull request #648 from zzuutt/fix-update-stock-with-stock-and-checkAvailableStock-=-0

fix bug at the time of the payment when stock=0 and checkAvailableStock=0
remove HookTest module activation, it's now required from composer
Tests fixed
Merge pull request #669 from lunika/hookTest

Hook test
CS fix
Merge pull request #668 from roadster31/shipping-zones-fix

Improved shipping zone configuration ergonomy
Added visible to all image/document schema
Updated Image/document loops
fixed missing import
Added backoffice interface to manage document/image visibility
updated sql for 2.1.0-alpha1
php-cs
changelog
Updated translations
small improvements