* core: catch IO exceptions in ExceptT * catch IO exceptions for ACK * simplify, remove unnecessary changes * fix, update simplexmq * update simplexmq, enable all tests * fix * update simplexmq (fix finally) * update sha256map.nix
* core: catch IO exceptions in ExceptT * catch IO exceptions for ACK * simplify, remove unnecessary changes * fix, update simplexmq * update simplexmq, enable all tests * fix * update simplexmq (fix finally) * update sha256map.nix