Initial import
"catalog/product/list.phtml" and "page/html/head.phtml" templates are rewrited.
Product list item for grid mode is extracted to the "list_item.phtml" template as "product_list_item" block.
"list_item.phtml" template is adapted to the module functionality.
"BASE_URL" js global variable is set.
"scss" styles are added.
"product_list.coffee" is added.
"README.md" is added.