Error if the Payment method friendly name ends with spaces 

in the Order Controller it seems that paymentMethodsCounts 
dictionary has the keys trimmed which cause the problem  at 
https://github.com/smartstore/SmartStoreNET/blob/b1b93cbca0ab689d449c67fa8b8ae8a8ca43516d/src/Presentation/SmartStore.Web/Administration/Controllers/OrderController.cs#L916

where x.Text is not trimmd 