setting image flag on shell commands for pcolor, contour, and contourf
setting image flag on shell commands for pcolor, contour, and contourf

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