Logging is done on a per session basis in the Sessions folder. Each one of the files there contains a log of what happens with that session.
I'd like a combined log too, but it isn't that hard to parse out the session files. I just haven't quite decided what approach to take. Probably the easiest is read each file, parse it out, write out log entries to a text file, and sort by time. Simple, easy to read, maybe write a new log each day. Or stuff it into a sqlite database, then you can run reports any which way. It's more problematic if you want to update the log every time something happens.