No matter how oppressively hot a New York summer can be, one of the dramatic oases in it has become the Summer Shorts Festival of New American Short Plays at 59E59 Theaters. Founded by artistic director (and often actor) J.J. Kandel 11 years ago, the mini-festival presents two bills of one-acts in repertory for several weeks. This year, Series B of Summer Shorts features Break Point, written and directed by Neil LaBute; A Woman, by Chris Cragin-Day, directed by Kel Haney; and Wedding Bash, written by Lindsey Kraft and Andrew Leeds, and directed by Kandel himself.