'The Blood Quilt' is a tempest-tossed sister act
A river of anguish spills out of the memory-haunted half-sisters of "The Blood Quilt," playwright Katori Hall's character-rich though unevenly engaging family drama, receiving its world premiere at Arena Stage. With a nod here to the rapid-fire invective of "August: Osage County," and a debt there to the poignant metaphor-building of "The Piano Lesson," Hall invites us to watch as four women methodically break each o…