Sadler's Wells; Linbury theatre, LondonContenders for two new dance prizes include Kyle Abraham's buoyant celebration of Black life and an intriguing twist on Georgian folk dance. Elsewhere, a township spin on Romeo and Juliet A house plant, a rug, a light. A sofa, initially covered in protective plastic. A group of friends whose greetings are warm and graceful and whose gossip covers people at church, what to wear o…