fixing potential problem in how LinePlot._render() checked for selected_points; adding TODO to remind myself to implement the highlight rendering capability of LinePlot
fixing potential problem in how LinePlot._render() checked for selected_points; adding TODO to remind myself to implement the highlight rendering capability of LinePlot

tommy-u/chaco,tommy-u/chaco,tommy-u/chaco,ContinuumIO/chaco,ContinuumIO/chaco,burnpanck/chaco,burnpanck/chaco,ContinuumIO/chaco,burnpanck/chaco,ContinuumIO/chaco