Update master port to emacs21.
Update slave ports to stub port:
flim113-emacs20, flim113-mule, flim113-xemacs21-mule.
Remove flim113-emacs.
I'll addport flim113-emacs19 stub(slave) port as emacs19 ports.
Install el/elc files to version specific site-lisp directory.
Change some style.
