(TIT): New variable, contatination of TIT-GB and TIT-BIG5.

(TIT): New variable, contatination of TIT-GB and TIT-BIG5.
(RUN-EMACS): Do not set EMACSLOADPATH.
(ASIA): Include TIBEAN.
(all): Remove stamp-bytecomp from dependency list.
({$TIT}): New target, substitues the target ${TIT-GB} ${TIT-BIG5}.
(%.el): Make a link for byte-compiled file too.
(stamp-bytecomp): Target deleted.
(leim-list.el): Run Emacs with loading quail.
(install-XXX): These targets deleted.
(install): Remove files under INSTALLDIR before copying new files.
Run Emacs with loading quail.
(clean mostlyclean): Remove only generated files.