Log Message:
Also install man page and README.

Update PKGREVISION.

Add INSTALLATION_DIRS and do-install target instead of
using its own installer. It was broken for custom INFO_DIR
and for new PKGMANDIR. (It is a very old autoconf/automake
I assume).

Also, this uses -ltermcap. So if /usr/lib/libtermcap.so does
not exist, then use BUILDLINK_TRANSFORM to use ncurses instead
and include ncurses buildlink3.mk.