Code review: 98320045: Adding psutil to the dependency check.
Code review: 98320045: Adding psutil to the dependency check.

rgayon/plaso,log2timeline/plaso,kiddinn/plaso,Onager/plaso,Onager/plaso,kiddinn/plaso,kiddinn/plaso,log2timeline/plaso,rgayon/plaso,joachimmetz/plaso,rgayon/plaso,joachimmetz/plaso