Declares an explicit scope for each method in the storefront_welcome class.
Adds support for argument overrides to the storefront_related_products_args() function.
Makes sure the storefront_thumbnail_columns() and storefront_products_per_page() functions always return an integer value.
Refines how the background colour is output when declaring inline styling for WooCommerce Bookings.
Merge pull request #64 from woothemes/scrutinizer-fixes

Scrutinizer fixes.