Update #4255 graphing code to ggplot2 0.9.0.
Update #4255 graphing code to ggplot2 0.9.0.

sysrqb/metrics-tasks,gsathya/metrics-tasks,sysrqb/metrics-tasks,gsathya/metrics-tasks,gsathya/metrics-tasks,gsathya/metrics-tasks,sysrqb/metrics-tasks,sysrqb/metrics-tasks,gsathya/metrics-tasks,sysrqb/metrics-tasks,sysrqb/metrics-tasks,gsathya/metrics-tasks