Promotion by input name/value fix
Set duplicated products to status draft at duplication time

Fixes bug #2279.
Removed 'must_setup' from registration
Short circuiting of validation checks when ShoppCheckout uses ShoppRegistration (since validation of the same fields takes place within the checkout process anyway)
ShoppFormValidation methods set up to act as filters. Related add_actions changed to add_filter calls.
Added means of stopping redirection to account page after user registration.

(ShoppRegistration tries to redirect to the account page once a new user has been registered, that's undesirable during checkout as we end up at the account page and the purchase isn't saved.)
Fixed #2174 adds product coverimage (if available) to order screen
Adds float right style for .right CSS class

('Proceed to checkout' link was no longer being floated right as it did previously)
Add New links use .add-new-h2 for consistency with WordPress UI
.add-new-h2 link added to promo editor.

Effectively useless at this time (!) since after saving a promo we are taken back to the list of promos ... I think we should keep the user on the editor page however and let them add a new promo (if they want to) from there - this would be more consistent with WP's post editor behaviour and would give the merchant a second chance to review any promocodes etc and ensure they are correct.
Merge pull request #2277 from ajwhite/master

Solution for Promotion by Cart Item input name/value

Props to Atticus White for the contribution!
Missing ! not operator when checking if a login has not been submitted
Merge branch 'master' of code.shopp.net:shopp
Stops password from being zeroed out too early (and resulting in diff pwords being created for the WP + Shopp accounts respectively)
Added support for item input name/value matching to the new Discounts class
Closed #2229 Added table name filtering
Corrects last modified dates on shopp products
Added support for skipping products in the RSS feed.

Part of my changes for fixing the Google Merchant feed implementation.
Closed #803 Added shopp_cart_item_pretotal filter
Closed #1840 Added size conversion method with support for minimums and unit conversion