(CHATHAM, N.Y.) – Brooklyn-based contemporary dance company Gallim Dance brings its inventive combination of quick wit, movement, introspection, youthful exuberance, and technical virtuosity to PS21: Performance Spaces for the 21st Century on Friday and Saturday, August 14 and 15, 2015, at 8pm. Gallim will be performing two pieces by company founder, artistic director and choreographer…