Added check for invalid states error on Shipping Calculator.
Merge branch 'dev' of github.com:jigoshop/jigoshop into dev
Check that $order->shipping_service is non empty before adding it to email.
add filter for new user notification.
Added jigoshop_before_billing_fields, jigoshop_before_shipping_fields hooks.
Merge pull request #852 from strangerstudios/dev

new user notification filter, before shipping and billing fields action hooks
update for version 1.7.1
added Order Attributes metabox
new values are stored
added information when there are no variations in order
fixed indentation
Merge pull request #856 from piotr-szczygiel/attributes-edit

Attributes edit
Merge pull request #1 from jigoshop/dev

Dev
fixed problem with not unique IDs
Merge pull request #859 from piotr-szczygiel/dev

fixed problem with not unique IDs
added action hook
added action hook jigoshop_admin_order_item_header_before_prod_id
order attributes meta box is now extendable
added pre and post order item action hooks
Merge pull request #863 from piotr-szczygiel/product-addons-changes

Product addons changes