Make generation of plot images optional
Report/Grader Enhancements
Sync with linkedin/naarad
Jmeter metric enhancement to support cdf
Improved error handling for report; Updates as per feedback
Updated description for -n option
Update as per review
Fix code formatting
Sync with linkedin/naarad
Merge pull request #156 from SharadGandhi/grader_enhancements

Grader enhancements