fixed bug #2189 with CMF toolbar
Merge pull request #2290 from neok/cmf_toolbar_menu_fix

fixed bug #2189 with CMF toolbar
Disable Unique SKU constraint for ProductVariant
Fix variant edit issue
[Promotion] Add basic gift card code
[Promotion] Add missing const & extend fixtures
Fix promotion related specs
Resolved merge conflict while rebasing
Conflicted file:
    - OrderRepositoryInterface.php
Add PoC for gift card validation to prevent cheats
Add frontend page where user can see all used giftcards ever
Add migration script
Fix reduction of gift card amount after order confirmation
Add Originator support
Fix: giftcard calculation based on outdated order total
Adjust composer.json