* automake.in (&handle_programs, &handle_libraries, &handle_tags)

* automake.in (&handle_programs, &handle_libraries, &handle_tags)
(&handle_ltlibraries, &handle_emacs_lisp, &handle_python): Adjust.
(&am_install_var): Forget about `-clean'.
Transform ?INSTALL?.
Always output the *.am file.
* data-clean.am, java-clean.am, libs-clean.am, lisp-clean.am,
* ltlib-clean.am, progs-clean.am, python-clean.am, tags-clean.am:
Remove, merged into the corresponding *.am file.
* data.am, libs.am, ltlib.am, progs.am, python.am: Equip with
?INSTALL?.