fix test:nobuild to only start one server
fix test:nobuild to only start one server

dhowe/p5.js,bomoko/p5.js,dhowe/p5.js,processing/p5.js,bomoko/p5.js,limzykenneth/p5.js,limzykenneth/p5.js,mlarghydracept/p5.js,processing/p5.js,mlarghydracept/p5.js