1.4.0

• Added support for custom inputs. You may set up custom inputs from your
  account portal.
• Added the following new values to the /payment/processor validation:
  • american_express_payment_gateway
  • bluesnap
  • commdoo
  • curopayments
  • ebs
  • exact
  • hipay
  • lemon_way
  • oceanpayment
  • paymentwall
  • payza
  • securetrading
  • solidtrust_pay
  • vantiv
  • vericheck
  • vpos
• Added the following new input values:
  /device/session_age and /device/session_id.
• Added support for the /email/first_seen output.