Add on-hold inventory quantity for the Variant
Hold inventory
Release inventory
Reported fixes
Release inventory, take care about inventory quantity
Fixed specs
PurchaseListener C fix
Merge pull request #938 from umpirsky/feature/on-hold-inventory

Add on-hold inventory quantity
On hold inventory status fixes
Merge pull request #952 from umpirsky/fix/on-hold-inventory

Fix/on hold inventory
Change properties' visibility to protected.
Merge pull request #962 from kayue/patch-4

Change PurchaseListener properties' visibility to protected.
Configurable purchace redirect route
Fix NoopInventoryOperator after Interface was updated. Also adding spec to prevent this from repeating.
Merge pull request #967 from Richtermeister/fix-noop-inventory

Fix NoopInventoryOperator after Interface was updated. Also adding spec ...
Separate purchace listener flash
Moved PurchaseCompleteEvent to core
Fixed unique order number error
Merge pull request #953 from umpirsky/fix/separate-purchace-listener-flash

Separate purchace listener flash
Merge pull request #963 from umpirsky/feature/configurable-purchace-redirect-route

Configurable purchace redirect route