ncurses 5.6 - patch 20081018

ncurses 5.6 - patch 20081018

+ build-fixes for OS/2 EMX.
+ modify form library to accept control characters such as newline
  in set_field_buffer(), which is compatible with Solaris (report by
  Nit Khair).
+ modify configure script to assume --without-hashed-db when
  --disable-database is used.
+ add "-e" option in ncurses/Makefile.in when generating source-files
  to force earlier exit if the build environment fails unexpectedly
  (prompted by patch by Adrian Bunk).
+ change configure script to use CF_UTF8_LIB, improved variant of
  CF_LIBUTF8.