remove old images from skin
check interval to 5 minutes, 30 sec was testing only
fix thumb and list alignment, b) from e-mail
fix header title, fixes d) in e-mail
use download folder from addon settings, fixes e) frm e-mail
fix heading on progress bar, fixes g) from e-mail
add refresh button to settings menu, fix h) in e-mail
correctly count downloads, fix k) from e-mail
cosmetics, remove logging