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

commit 562483eb5c383bee9d66425e8e87b5512bd69427
parent e61803d187c5ba66a45a0e13fb9584e124334d36
Author: Florian Dold <florian.dold@gmail.com>
Date:   Thu,  7 Apr 2016 12:00:50 +0200

update submodules

	merchant Merchant backend to process payments, run by merchants
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