Fix argument to sync
Don't download Drive files as empty folders
Treat throttle argument as KB
Fix pass-through conduit

Would be nice to pass more than the first element...
Equalize mtimes on download

When we download a new file, we should set its modified to match the
remote file's otherwise it will appear to need to be uploaded on next
sync.
Only add Content-Range if non-zero
Use simpler sourceFile for new uploads
Remove compiler output from README