Merge theme engine v2
Checkout page user interface issues
* Fix issue where shipping state does not change when shipping calculator drop down changes
Put current customer meta values into hidden fields on checkout page just in case store owner hides fields on checkout forms.  This allows any JavaScript actions that have depend on the availability of specific meta items to work properly if the store administrator hides any of the fields in the checkout forms.
* Shipping state/region elements visibility was being changed when billing country was being changed.  Change billing state/region visibility when shipping country changes instead.

Should resolve issues reported in #1144
Fix #1163
Resolve conflict
Resolve some escaping issues.  See #777
Proper padding for table header cells and H#
Merge pull request #1164 from pippinsplugins/order-details

Improved spacing for Order Details
Fix the madness of upgrades page
Merge pull request #1165 from pippinsplugins/store-upgrades

Fix the madness of upgrades page
force ajaxurl to be set in admin scripts
Fix broken tabs.  props @pippin
Merge branch 'master' of github.com:wp-e-commerce/WP-e-Commerce
Rework some UI on product admin

* Ensure that live previews always show in headings.  Removes wonky absolute positioning as well.
* Fixes bug where stock is sanitized as a digit, but formatted as a string.  1000+ was failing.
* Moves inline JS to admin.js
Merge pull request #1166 from JeffPyeBrook/pr-ajaxurl-not-defined

force ajaxurl to be set in admin scripts
Remove unused  variable from wpsc_product_download_forms() metabox
Merge branch 'master' of github.com:wp-e-commerce/WP-e-Commerce
Restore text type to shipping inputs, so they are properly sized.
Properly decrement metadata in live preview.
Add notice in meta area when no meta exists.
Adjusted upgrade page links and products

Adjusted links and products. Removed unavailable ones and changed links