Merge pull request #13 from zhenyun/master

removed access attribute; added/enforced hostname attribute; updated httpdownload test cases
Fix multithreading race condition for plotting
Fix Jmeter Metric which was broken after latest merge
Merge pull request #20 from SharadGandhi/master

Fix JmeterMetric + MultiThreading Issue
Merge pull request #21 from RiteshMaheshwari/master

Adding configs for integration testing

lgtm
Updating sar metric to support network IO and important metrics