Checks for missing files with 'directory'
Checks for missing files with 'directory'

If some packages were not included in the pack AND are not present on
the host either, it is very probable that the experiment will fail.

JosuaKrause/reprozip,ViDA-NYU/reprozip,JosuaKrause/reprozip,JosuaKrause/reprozip,ViDA-NYU/reprozip,ViDA-NYU/reprozip,ViDA-NYU/reprozip,JosuaKrause/reprozip,ViDA-NYU/reprozip