Add psutil to conda in .travis.yml
Add psutil to conda in .travis.yml

Ichoran/tracker-commons,openworm/tracker-commons,openworm/tracker-commons,openworm/worm-tracker,Ichoran/tracker-commons,openworm/tracker-commons,openworm/tracker-commons,Ichoran/tracker-commons,Ichoran/tracker-commons,openworm/tracker-commons,openworm/tracker-commons,Ichoran/tracker-commons,Ichoran/tracker-commons,openworm/worm-tracker