libncurses removed

[Dr . Jürgen Sauermann]

Hi,

Due to too many problems on some platforms (and too little benefit
for GNU APL) I have removed the use of libncurses by GNU APL.

As a replacement there is now a tool "emul_ncurses" in directory tools.

In the unlikely event that the removal of ncurses causes trouble for
you (unlikely because use of ncurses has always been a last resort fallback)
you can run  emul_ncurses and patch its output into one of your preferences
file.

SVN 1345.

Best Regards,
Jürgen