On hold inventory status fixes
Change properties' visibility to protected.
Configurable purchace redirect route
Separate purchace listener flash
Moved PurchaseCompleteEvent to core
Fixed unique order number error
Merge pull request #963 from umpirsky/feature/configurable-purchace-redirect-route

Configurable purchace redirect route
Merge pull request #904 from umpirsky/fix/last-order-number

Fixed unique order number error