if you gowhat: oak room grand openingwhen: 5-7:30 p.m. saturday, feb. 25where: oak room at the longmont brewery, 1800 pike roadon tap: special beers on tap, live music, parade and stiltwalkersmore info:facebook.com/events/132090277306491/old beer is in, and it's helping one local brewery grow. longmont-based oskar blues is opening its new event space, oak room, this weekend in a mardi-gras themed party open to the publicthe 4,275-square-foot space is adjacent to oskar blues' barrel-aging room and, in fact, came about because of the need to store the brewery's growing collection of maturing beers.`our barrel aging program was really picking up, and we needed space for that,` said chad melis, marketing director for oskar blues. `the oak barrels were really good looking, and that inspired the direction of the room.`we figured we could turn it into something the community can use.`about 1,000 barrels of beer will be aging at any given time in the aging room, visible through a large...