Comment 8 for bug 1471903

I prepared a patch to live-build that basically modified the patch to not remove -security_ and -updates_ from the apt lists as a proposition. I think this is a sane idea as, in theory, both security and updates pockets should generally be pretty empty when we build images and never actually have too many packages. While this gives us a lot of positives: both for ubuntu-touch and for the installer/live images themselves.