New dload function, it's now possible to choose a downloader
via ~/.brc.
dload now supports resuming if FETCHCMD is lftp, wget, curl or
ncftpget (ftp only)
Update TLDs to the latest set.
Rename _verb to _vrbs
Fix a bug: prog was used to store the script's name, but it
gets overridden during program usage, so name it app instead