Commit 78e97e38cbf9f136e483bfcc406a166d23b9c5f5

DRC 2017-11-15T19:39:45

Uniquify tjbenchtest log file names based on args + clean up log files when 'make testclean' is invoked + fix 'tjbenchtest -yuv -alloc' + fix tjexampletest so that it creates images under /tmp + clean up tjexampletest