Held in the heart of downtown Portland, the Holiday Ale Festival keeps attendees warm and dry under a large clear top tent allowing for views of the city lights. Gas heaters create a cozy ambience under the boughs of one of the region's largest decorated Christmas trees.   Festival Hours Wednesday, Dec. 4th 11:00am - 9:00pm Thursday, Dec. 5th 11:00am - 9:00pm Friday, Dec. 6th 11:00am - 9:00pm Saturday, Dec. 7th 11:00am - 9:00pm Sunday, Dec. 8th 11:00am - 5:00pm…