Use own function to genenrate session id
Add a new function generate the session id, that we use to uniquely identify each run of boltd. This removes the dependency on libsystemd, which should help for #107 (closed) and also mr !103 (merged).
Add a new function generate the session id, that we use to uniquely identify each run of boltd. This removes the dependency on libsystemd, which should help for #107 (closed) and also mr !103 (merged).