woothemes/woocommerce — pull request #5227 by ChromeOrange (2014-03-28 02:28:41+00:00)
Title: update form-shipping.php

Add filter to allow needs_shipping() to be overridden, useful if you want to collect a shipping address for virtual products.

Allows a filter to be used as replacement for get_option('woocommerce_require_shipping_address')

Previous suggestion of add_filter('woocommerce_cart_needs_shipping', '__return_true'); is not suitable