Small tweaks to get things building and running

It compiles cleanly, and it will parse the config file and start
running... sort of.  The actions and database libraries still don't
link properly, so the zone can't start up properly.  Getting closer.

Lots of small tweaks here and there.  Makefiles, the config object,
some logging tweaks (and conversion of mysql.cc to use the new-style
std::clog logger).