* Compatibility changes for Magento CE 1.8.0.0+
* Compatibility with newer version of currently supported checkout
extensions
* An interaction bug during checkout in Internet Explorer 9
Added provisional support for the following checkout modules:
* Aitoc One Step Checkout Manager
* AheadWorks One Step Checkout
* J2T OneCheckout
* MagentoTemplate OnePage Magento Checkout
* MageWorld One Step Checkout Pro
Features:
* Option to disallow post office box (postbus) addresses
* Option to disable checks in the admin
* More error checking
* Push to v1.1.0.0

Restrictions:
* Only support for Magento CE v1.6 and up