wait-for-chrome-to-finish-downloads hides errors
Added pacman.conf to the config folder

This was necessary because pacman-color has been removed from the
AUR. Now the recommended technique is to uncomment the line "Color"
from /etc/pacman.conf, which is what I did. Also, now each machine
will have multilib and archlinuxfr libraries available by
default (though there is still a chicken-and-egg problem where Dropbox
needs to be installed via AUR).