1.7.0

• Python 2.6 support has been dropped. Python 2.7+ or 3.3+ is now required.
• Renamed MaxMind user ID to account ID in the code and added support for the
  new ACCOUNT_ID_REQUIRED error code.
• Added the following new values to the /payment/processor validation:
  • ccavenue
  • ct_payments
  • dalenys
  • oney
  • posconnect
• Added support for the /device/local_time output.
• Added support for the /credit_card/is_virtual output.
• Added payout_change to the /event/type input validation.