2006-04-12  Murray Cumming  <murrayc@murrayc.com>

        * tools/pm/WrapParser.pm: Parse a new optional constversion parameter for
        _WRAP_METHOD(), to save on code size by just calling the non-const overload
        instead of generating almost identical code.
        * tools/m4/method.m4: _METHOD(): Take extra parameters for use when constversion is used.
        * tools/pm/Output.pm: Send the extra parameters to _METHOD().
        * docs/internal/using_gmmproc.txt: Documented the new constversion option.