Iconic work springs to life
There was an understandably festive air in the people-choked lobby of the Colonial Theatre Saturday night. Roughly eight weeks shy of the handsomely restored theater's opening on Aug. 29, 2006 with a production of Jonathan Larson's Pulitzer Prize-winning rock opera, " Rent," the Colonial was marking its rebirth as a component of the newly created Berkshire Theatre Group, a melding of the Colonial Theatre with the 83-…