add steps from first_run.sh to Vagrantfile?

[KrisThielemans]

When creating #739, I wondered if we shouldn't put configure_gnome.sh and configure_jupyter.sh in our Vagrantfile (with a sudo -u $SIRFUSER or similar presumably). Would that work?

We then only need to do zero_fill.sh before exporting.

[KrisThielemans]

Adding configure_gnome doesn't work.

    default: + sudo -u sirfuser -H bash /home/sirfuser/devel/SIRF-SuperBuild/VirtualBox/scripts/configure_gnome.sh
    default: grep: /proc//environ: No such file or directory
    default: grep: /proc//environ: No such file or directory
    default:
    default: (process:19593): dconf-WARNING **: 15:38:30.670: failed to commit changes to dconf: The given address is empty
    default:
    default: (process:19596): dconf-WARNING **: 15:38:30.673: failed to commit changes to dconf: The given address is empty
    default:
    default: (process:19599): dconf-WARNING **: 15:38:30.675: failed to commit changes to dconf: The given address is empty
    default:
    default: (process:19602): dconf-WARNING **: 15:38:30.677: failed to commit changes to dconf: The given address is empty
    default:
    default: (process:19605): dconf-WARNING **: 15:38:30.680: failed to commit changes to dconf: The given address is empty
    default:
    default: (process:19608): dconf-WARNING **: 15:38:30.683: failed to commit changes to dconf: The given address is empty
    default:
    default: (process:19611): dconf-WARNING **: 15:38:30.685: failed to commit changes to dconf: The given address is empty

Not sure why this is