update version to 0.2.7
update version to 0.2.7

shadow-robot/urdfdom,shadow-robot/urdfdom,shadow-robot/urdfdom,keulYSMB/urdfdom,robotology-dependencies/urdfdom,keulYSMB/urdfdom,robotology-dependencies/urdfdom,robotology-dependencies/urdfdom,shadow-robot/urdfdom,robotology-dependencies/urdfdom,keulYSMB/urdfdom,keulYSMB/urdfdom