[Addon] Rank mirror servers: Fix packages download errors

[Addon] Rank mirror servers: Fix packages download errors
Tested on RPi3
for RuneAudio 0.3 and 0.4b

- enable(uncomment) all mirror servers
- download test for 3 seconds from each servers
- ranked by download speed
- update mirrorlist file, /etc/pacman.d/mirrorlist (with original backup)

View code - GitHub

Rank
from Addons Menu

Thankyou rern

Works as described!

Thank you very much rern, for all your contribution!