Introduce action hooks at the top and bottom of the add/edit coupon screens
Merge pull request #1351 from pippinsplugins/feature/discount-actions

Introduce action hooks at the top and bottom of the coupon add/edit
Ensure that the 1.0 engine isn't always enabled.  This occurred because _wpsc_theme_engine_v1_has_actions() always returned true, due to actions hooked into in core.  We're a bit more clever now.
Use WP_HTTP API in USPS.  Works on servers without curl now.  Nifty.
Placeholder file for redirect-canonical work.  I fear the dragons that lay here.
Update Polish language file
Merge pull request #1353 from meloniq/update-pl-lang

Update Polish language file
Show error message if user tries to select inline CSS without common CSS.
Merge branch 'master' of github.com:wp-e-commerce/WP-e-Commerce
overrideMimeType does not exist in IE, and also, because the headers are set properly in wp_send_json(), this is unnecessary.
Deactivate theme engine plugin if it exists.
Ensure theme engine plugin is properly deactivated when updates occur.
Eliminate erroneous debug variable from wp-e-commerce.js.  Introduced in 4409bfa8fbf194cee9dcf477167a96bd3f758fc4
Modify methods used to access Country currency symbols and codes inside wpsc_format_currency.  Part of larger effort to ensure the theme engine componenet uses the latest methods in WPSC_Country.
First pass at updating theme engine to use new WPSC_Country methods.
It seems that prior to 3.8.14, WPSC_Country::get_all() returned an array of WPSC_Country objects.  It seems to have regressed to now just return an array of countries.  This commit fixes that.
Docs pass for wpsc-theme-engine-bootstrap.php
First pass at improving WPSC_Controller_Cart::add()

* Adds filter parity to new changes in wpsc_add_to_cart().
* Redirects back to product on appropriate errors.
* Adds error handling for the now less likely scenario of adding a variation-product to the cart without variation values.

Still a bit of weirdness here to work out, but we're getting there.
adding check for post type to body class so we get our body classes showing up on single products and the main product listing
- stopping the fancy and using WP built in is_tax

Why be 'fancy' (which wasn't working) when WordPress provides a built in
helper for this called is_tax. Using it instead and we're getting
expected behaviour.