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Merge pull request #19 from Senjai/2-1-lav-gcshow

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Merge pull request #20 from Dkendal/2-1-lav

Add transferability of gift cards.
Add the ability to refund a gift card.
Merge pull request #21 from Senjai/2-1-lav-refund-gc

Add the ability to refund a gift card.
Remove created at criteria and add expired criteria.
Merge pull request #22 from Senjai/gcfix

Remove created at criteria and add expired criteria.