- made the "next scripting laguage" a own, loadable tcl package (currently named nx, name is subject of change) - predefined.tcl is now pretty minimal.
- changed "Serializer.xotcl" to "serializer.tcl" (package name from xotcl::serializer to nx::serializer) - added stub for xotcl::serializer for backward compatibility - changed serializer to new namespaces - renamed xotcl.tcl to xotcl2.tcl - added proc finalize to xotcl2.tcl