[Feature Request] Smart Alert Of Needed Space

[liquidator87]

If I download a torrent with 1000 files of 1 GB each (total 1 TB), and I select only one file with priority "normal" and the remaining files with "don't download", Deluge complains that there's not 1 TB free needed for the torrent... which makes no sense, it shoud check for the real needed space (for example 2-3 GB in this case)...

This is only an example, but you get what I mean