chore(package): update sinon to version 5.1.1
chore(package): update sinon to version 5.1.1

RobotlegsJS/RobotlegsJS-Pixi,RobotlegsJS/RobotlegsJS-Pixi,RobotlegsJS/RobotlegsJS-Pixi,RobotlegsJS/RobotlegsJS-Pixi