ON SATURDAY NIGHT, the building was full of music, conversation, laughter. And hugs. The beers were flowing. And the tears were flowing. After 30 seasons, Quarter Moon Books — I don’t care what the full name became; I shall always know it as Quarter Moon Books — went out with neither a bang nor a whimper. It went out with shared memories and anguished smiles. Several hundred friends — yes, a bookstore can have friends — squeezed into the iconic Topsail Beach shop to personally thank owner Lori Fisher for all she and Quarter Moon had meant to them over the years and . . . I NEED TO INSERT…