Fixed order state not saved on notification in 1.8.1.0

... on payment notifications the order state
(and other changes) are not changed in Magento
1.8.1.0 because `sendNewOrderEmail()` will reload
all data in the `$order` object
Merge pull request #2 from occitech/fix-state-update-1-8-1-0

Fixed order state not saved on notification in 1.8.1.0