UUP downloader softlocks on slow connections

[mrpijey]

If you're on a too slow connection the downloader may simply stop downloading. It will not progress to the next file and never restart. Downloader has to be terminated and restarted to continue.

Possible to add an option for a timeout value? I.e if download has not progressed to the next file within x seconds/minutes mark as bad download and continue. Helps with slow downloads.