Merged in feature/from-pantheon (pull request #16)

code from pantheon

* code from pantheon

wp/wp-content/plugins/woocommerce/templates/loop/loop-start.php

@@ -0,0 +1,22 @@
+<?php
+/**
+ * Product Loop Start
+ *
+ * This template can be overridden by copying it to yourtheme/woocommerce/loop/loop-start.php.
+ *
+ * HOWEVER, on occasion WooCommerce will need to update template files and you
+ * (the theme developer) will need to copy the new files to your theme to
+ * maintain compatibility. We try to do this as little as possible, but it does
+ * happen. When this occurs the version of the template file will be bumped and
+ * the readme will list any important changes.
+ *
+ * @see         https://woo.com/document/template-structure/
+ * @package     WooCommerce\Templates
+ * @version     3.3.0
+ */
+
+if ( ! defined( 'ABSPATH' ) ) {
+	exit;
+}
+?>
+<ul class="products columns-<?php echo esc_attr( wc_get_loop_prop( 'columns' ) ); ?>">