Upgrade to testng 6.8.21
Upgrade to testng 6.8.21

Note that this is the last version compatible with Java 6.  Changelog:

https://github.com/cbeust/testng/blob/master/CHANGES.txt

kahing/s3proxy,timuralp/s3proxy,andrewgaul/s3proxy,kahing/s3proxy,andrewgaul/s3proxy,timuralp/s3proxy