[GRASSLIST:1185] New man dir structure

Hi GRASS list,

If you updated CVS g.manual, you should rename man directory:

  mv $(GISBASE)/man/1 $(GISBASE)/man/man1
  mv $(GISBASE)/man/2 $(GISBASE)/man/man2
  mv $(GISBASE)/man/3 $(GISBASE)/man/man3
  mv $(GISBASE)/man/4 $(GISBASE)/man/man4
  mv $(GISBASE)/man/5 $(GISBASE)/man/man5

This structure follows UNIX man dir structure for common man programs.
Some man does not work for old g.manual; man somewhere/filename
This is changed to use; man -M somewhere modulename

Regards,
Huidae Cho