old_contents: 
  import logging
  from fakturo.billingstack.client import Client
  
  logging.basicConfig(level=logging.DEBUG)
  
  client = Client('http://localhost:9090/billingstack', username='ekarlso', password='secret0', account_name='bouvet')
  
  for account in client.account.list():
      print "== Merchant: %s==" % account['name']
      for k, v in account.items():
          if not k == 'name':
              print "INFO", k, v
  
new_contents: 
  import logging
  from fakturo.billingstack.client import Client
  
  logging.basicConfig(level=logging.DEBUG)
  
  client = Client('http://localhost:6543/v1')
  
  for account in client.account.list():
      print "== %s ==" % account['name']
      for k, v in account.items():
          if not k == 'name':
              print "INFO", k, v
  
subject: Update sample usage