No ubuntu user, disallow root login, root shell on tty1

Conflicts:
	ubuntu-14.04/scripts/base.sh
	ubuntu-14.04/template.json
diff --git a/ubuntu-14.04/scripts/cleanup.sh b/ubuntu-14.04/scripts/cleanup.sh
index ae0b269..9793e9b 100644
--- a/ubuntu-14.04/scripts/cleanup.sh
+++ b/ubuntu-14.04/scripts/cleanup.sh
@@ -1,4 +1,4 @@
-apt-get -y autoremove
+apt-get -y autoremove --purge
 apt-get -y clean
 
 echo "cleaning up guest additions"