leim/Makefile.in: use GNU Make features to simplify and parallelize.

leim/Makefile.in: use GNU Make features to simplify and parallelize.

* leim/Makefile.in (CHINESE_TIT, TIT_SOURCES, MISC_SOURCES, changed.tit)
(changed.misc): Remove.
(${leimdir}/quail, ${leimdir}/ja-dic): Create using order-only prereq.
(misc_convert): New.
(${leimdir}/quail/%.el, ${leimdir}/quail/CT%.el)
(${leimdir}/quail/PY.el, ${leimdir}/quail/ZIRANMA.el)
(${leimdir}/quail/tsang-%.el, ${leimdir}/quail/quick-%.el): Use pattern rules.
(${leimdir}/leim-list.el, ${leimdir}/ja-dic/ja-dic.el):
Use automatic variables.
(bootstrap-clean): No changed.* files to delete any more.

* .bzrignore: No leim/changed.* files to ignore any more.