Bug#1028643: fontconfig: 2.14.1-3 greatly changes font rendering

[Konomi]

For anyone who is not super happy with this change from DejaVu to Noto
I just did this to revert it:

1. Create a file called /etc/fonts/conf.d/50-prefer-dejavu.conf
2. Add the following:

<fontconfig>
<alias>
    <family>monospace</family>
    <prefer>
        <family>DejaVu Sans Mono</family>
    </prefer>
</alias>
<alias>
    <family>sans</family>
    <prefer>
        <family>DejaVu Sans Book</family>
    </prefer>
</alias>
<alias>
    <family>serif</family>
    <prefer>
        <family>DejaVu Serif Book</family>
    </prefer>
</alias>
</fontconfig>

3. Save the file and run fc-cache -r

I'm not super familiar with how fontconfig works so if anyone who is
could look over this and suggest a better method it would be greatly
appreciated. But this seems to work if you want the old behaviour
back.