Bumping version and CHANGELOG post-release.
get_extra_cart_price needs the request
make order of the items in the cart deterministic
Add missing french translations
Merge pull request #230 from aitzol/master

get_extra_cart_price_field needs the request
Merge pull request #233 from sephii/cart-items-order

make order of the items in the cart deterministic
Merge pull request #232 from sephii/fr-translations

Add missing french translations
Cart views sanitize inputs
Merge pull request #234 from atheiste/master

Cart views sanitize inputs
Make sure the checkout confirmation redirect is not a permanent one.

Permanent redirects may be cached by the browser or a reverse proxy, causing
the view to be ignored. The order status then won't get updated.
Merge pull request #237 from sephii/checkout-redirect

Make sure the checkout confirmation redirect is not a permanent one
docstring fix (thanks to tomas for pointing it out)
Let define a custom CartItemModelForm
Merge pull request #240 from nephila/feature/custom_formset

Let define a custom CartItemModelForm
Added dutch (The Netherlands = nl) translation files
Merge pull request #242 from iamit/master

Added dutch (The Netherlands = nl) translation files
Fixing some spanish translations
Fixing some spanish translations
Merge pull request #250 from jjimenezlopez/fixing_spanish_translations

Fixing spanish translations
Add BaseCart.is_empty property to enable override

It is used in get_or_create_cart() function to decide
if cart from session should be used or new cart should be created.