fix edit method to pass Cassowary solver instance
fix edit method to pass Cassowary solver instance

babelsberg/babelsberg-js,psieg/babelsberg-js,psieg/babelsberg-js,babelsberg/babelsberg-js,fniephaus/babelsberg-js,fniephaus/babelsberg-js,psieg/babelsberg-js,fniephaus/babelsberg-js,psieg/babelsberg-js,fniephaus/babelsberg-js,babelsberg/babelsberg-js,babelsberg/babelsberg-js