AcessManagerReply: use PMF signal/slot syntax
Looking at how AccessManagerReply is used, the SimpleJob arg in that ctor is either a StatJob, or a (derived class of) TransferJob, or just a SimpleJob, (i.e. a job that doesn't have e.g. redirection() signal...etc).
I think this is more "precise", instead of relying on MOC doing the searching we do it ourselves by casting to the correct KIO::Job class.