I had two of my 5 miners stop and the only thing in the logs now is "Clean up"

[2014-08-05 19:06:02] Clean up

Any ideas why they've stopped before I wipe them and start over?

Just tried mining on VeriPool with ~150Mh worth of Scrypt and got a shitload of rejects.  Any way to set the diff on this pool?

Feature request:

Federated UI

It would be nice to have a single window to manage multiple Minera instances running across several Raspis.  Switching pools, restarting miners, etc. would be good to see from one page.