Option to watch for added/removed torrents in directory

[hongkongkiwi]

Hi there,

I think it would be very practical to add/remove torrents without having to restart distribyted. I've setup a route with something like this:

routes:
  - name: blackhole
    torrent_folder: "/distribyted/torrents"

I'd like to have a watch: true option to watch for added/removed files and reload the torrents in the route appropriately for zero downtime updates.

[brilthor]

I agree this would be a very nice feature, it looks like there is something blocking it's implementation though according to: #5 (comment)