Create woocommerce-pt_PT.po

I have just finished the front-end pt_PT Woocommerce translation, which I have just posted as a commit. I have started to translate the admin .po version but, as I am somewhat busy these days, it will take some time before I have it ready.
Best Regards
Tiago
www.estudiodavilla.com

p.s. do keep going with your excellent work on WooCommerce.