message: [faucet] use DD address
  Updated server to get the designated dealer account address
  Closes:
  Approved by: christinacelee
diff: @@ -68,7 +68,7 @@ def send_transaction():
  "a m {} {} {} use_base_units".format(auth_key, amount, currency_code))
  application.client.expect("Mint request submitted", timeout=2)
  - application.client.sendline("a la")
  + application.client.sendline("q as 000000000000000000000000000000dd")
  application.client.expect(r"sequence_number: ([0-9]+)", timeout=1)
  application.client.terminate(True)
  except pexpect.exceptions.ExceptionPexpect:
  