maint: fix prefix and suffix installs for libtoolize.

* Makefile.am (install-data-local): Depend on new
install-scripts-local, and move libtoolize install from here...
(install-scripts-local): ...to here.
Pass libtoolize destination through program transform expression.
(uninstall-hook): Likewise, prior to removal.
* NEWS: Update.
* THANKS: Update.
Reported by Václav Zeman

Signed-off-by: Gary V. Vaughan <gary@gnu.org>