Fixed to handler cookies from previous version correctly. Add back in inf max_age for session cookie when Remember Me is checked so it passes the expiration test.
Took out the huge kludge to load xotcl-core during the bootstrap process.Package libraries are now loaded in dependency, rather than alphabetical,order so this kludge should no longer be necessary (unless people have notbeen keeping their dependencies in order, in which case they should feelfree to fix their packages ...)
adding flexibility for passing 'checked' as well as 'selected' in qf_options, to be consistent with passing 'selected' as well as 'checked' in qf_input.