Do error recovery properly when shred hits ulimits
Do error recovery properly when shred hits ulimits

rxcomm/mixminion,mixminion/mixminion,crooks/mixminion,Javex/mixminion,rxcomm/mixminion,Javex/mixminion,mixminion/mixminion,nmathewson/mixminion,mixminion/mixminion,rxcomm/mixminion,nmathewson/mixminion,nmathewson/mixminion,reezer/mixminion,crooks/mixminion,crooks/mixminion,reezer/mixminion,crooks/mixminion,rxcomm/mixminion,reezer/mixminion,mixminion/mixminion,nmathewson/mixminion,Javex/mixminion,reezer/mixminion,Javex/mixminion