kill run_step after specified duration
Make generation of plot images optional
Report/Grader Enhancements
Sync with linkedin/naarad
adding run_step unit tests
minor fix
Jmeter metric enhancement to support cdf
Improved error handling for report; Updates as per feedback
Updated description for -n option
send SIGKILL if SIGTERM doens't work
Handle keyboard interrupt
simplifying code
Update as per review
Fix code formatting
adding try catch in kill
Merge pull request #152 from RiteshMaheshwari/master

kill run_step after specified duration
Sync with linkedin/naarad
Merge pull request #156 from SharadGandhi/grader_enhancements

Grader enhancements