I added Persian to translations

I just added a file named 'fa.yaml'  to the translations for Persian/Farsi. I replaced "util.ipsum" with a short poem from Hafez from http://fa.wikisource.org/wiki/%D8%AD%D8%A7%D9%81%D8%B8_(%D8%BA%D8%B2%D9%84%DB%8C%D8%A7%D8%AA)/%D9%86%D9%81%D8%B3_%D8%A8%D8%A7%D8%AF_%D8%B5%D8%A8%D8%A7_%D9%85%D8%B4%DA%A9_%D9%81%D8%B4%D8%A7%D9%86_%D8%AE%D9%88%D8%A7%D9%87%D8%AF_%D8%B4%D8%AF