qMakeTorrent crashes when the folder that your making the torrent of is empty.

[anjandev]

When I run qmaketorrent in a directory (in batch mode) and have an empty directory (in said directory), the program crashes. Perhaps have it so that if the user has selected a single empty directory, the program alerts the user that the directory is empty. If running in batch mode and the program finds an empty directory, the program simply alerts the user which directory is empty but continues making the torrent files for the other directories.