Change wc1c_replace_product() signature


git-svn-id: https://plugins.svn.wordpress.org/woocommerce-and-1centerprise-data-exchange/trunk@1029848 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update wc1c_replace_product() signature, add filter wc1c_import_xml_product


git-svn-id: https://plugins.svn.wordpress.org/woocommerce-and-1centerprise-data-exchange/trunk@1029849 b8457f37-d9ea-0310-8a92-e5e31aec5664