[featurerequest] i3blocks-like signal handling

[tezkerek]

I have the volume displayed in yabar, and I don't want to have the block update every 10 seconds or so. Instead, I could configure xbindkeys to send a signal to yabar, telling it to update the volume block. I don't know how difficult it would be to implement, but it would be a pretty neat feature.

[paulbdavis]

I would like this as well, for updatin a block outside the normal timeout

The config implementation could be reload-signal: 13, then trigger with pkill -RTMIN+13 yabar