function NodeManipulator(o)
{
	this.enabled = true;
	this.on_node_clicked = false;
	this.use_global_up_for_yaw = false;
	this.rot_speed = [1,1]; //degrees
	if(o)
		this.configure(o);
}
Node manipulator, allows to rotate it
@class NodeManipulator
@constructor
@param {String} object to configure from