Fix order item compare
Change `sylius_update_shipment` state machine callback.
Fix promotion coupons not properly filtering based on promotion ID
Merge pull request #2047 from MichaelMackus/issue_2046

Fix promotion coupons not properly filtering based on promotion ID
Merge pull request #2045 from Joypricecorp/confirm-order-statemachine-callback

Change `sylius_update_shipment`  state machine callback.
Guest order coupon eligibility, fixes issue #2048
Merge pull request #2048 from umpirsky/fix/issue-2048

[BUG] Guest order and PromotionEligibilityChecker
Fix login scenarios
Fix coupon scenario
Fix checkout start scenarios
Merge pull request #2029 from umpirsky/fix/item-compare

Fix order item compare
Change promotion total format in scenarios
Remove bugged spec
Handle null value

Should handle null value here, or promotions usage limit should not be nullable.
Version bump
Initial API
Setup testing architecture for API
Fix relations and metadata loading
Initial shipping method api tests
Rework code & fix issues after gathering feedback