update submodules - merchant - Merchant backend to process payments, run by merchants

commit 78524c0bd8bbe5bfba26bf94cb8b3bfe37becf50
parent 46e74818f7adeec04bcfe268069b8f68f6fc346d
Author: Florian Dold <florian.dold@gmail.com>
Date:   Wed,  6 Apr 2016 17:43:31 +0200

update submodules

	merchant Merchant backend to process payments, run by merchants
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