It may feel a bit like Black Friday this weekend at the Mall of America. The Bloomington megamall is expecting big crowds on Saturday and Sunday as Muslims around the Twin Cities celebrate the end of Ramadan, a month-long period in which followers fast from sunrise to sunset. Eid al-Fitr, which begins Saturday night, marks the end of the holy month. In the day or two leading up to Eid, many families go shopping to pick up gifts for children. And when Eid arrives and the fasting is over, places like the Mall of America as well as the Original...