In what was probably the last time Dr. Dremo’s Taphouse in Arlington would be open to the public, close to 100 spectators, friends and former patrons of Dr. Dremo’s Taphouse gathered around the indoor bar last night to give their last tributes to the staff and possibly take home a memento by which to remember the D.C.-area fixture. While a few came in search of a deal on a pool table, kitchen appliance, or…