#130 folder monitoring daemon

[Anonymous]

Add option to run like:
aria2c -D --in-torrent-folder ~/drop_torrent_here
so aria2 will become daemon which constantly monitor given folder and add all .torrent, .metalink, .list_of_http and so on files to download into some flder specified via config and]or command line (maybe separate folders for each type of download e. g. ~/ftp ~/torrent etc.)

Hint: folder monitoring could be easily achieved via inotify with tiny resource usage overhead. On platforms where inotify unavailable this option could be made unavailable too.