add tzdata in list of packages to install. It looks like it used to be in the ubuntu base, but is no longer there.
add tzdata in list of packages to install. It looks like it used to be in the ubuntu base, but is no longer there.

pagodabox/nanobox-docker-base,pagodabox/nanobox-docker-base,nanobox-io/nanobox-docker-base,nanobox-io/nanobox-docker-base