creditmutuel: fix listing of recipients in 'transfer'

Hi,

Without the patch below, I get:
Bug(creditmutuel): 'generator' object has no attribute 'itervalues'

The patch fixes this.

Thanks,

Lucas

Signed-off-by: Romain Bignon <romain@symlink.me>

modules/creditmutuel/backend.py

@@ -70,7 +70,7 @@ class CreditMutuelBackend(BaseBackend, ICapBank):
                     yield tr
 
     def iter_transfer_recipients(self, ignored):
-        for account in self.browser.get_accounts_list().itervalues():
+        for account in self.browser.get_accounts_list():
             recipient = Recipient()
             recipient.id = account.id
             recipient.label = account.label