True to resume a previous partial download, false to discard a previous partial download. The default is false.
UltraLite.NET can use the ULFileTransferListener object to restart downloads that fail because of communication errors or
user aborts. UltraLite.NET processes the download as it is received. If a download is interrupted, then the partially download
file is retained and can be resumed during the next file transfer.
If the file has been updated on the server, a partial download is discarded and a new download starts.