fixing bug reported by Fred: fill_alpha in ColormappedScatterPlot is incorrectly applying to the outline color as well
fixing bug reported by Fred: fill_alpha in ColormappedScatterPlot is incorrectly applying to the outline color as well

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