ncurses 5.8 - patch 20110319

ncurses 5.8 - patch 20110319

+ regen Ada html documentation.
+ change order of -I options from ncurses*-config script when the
  --disable-overwrite option was used, so that the subdirectory include
  is listed first.
+ modify the make-tar.sh scripts to add a MANIFEST and NEWS file.
+ modify configure script to provide value for HTML_DIR in
  Ada95/gen/Makefile.in, which depends on whether the Ada95 binding is
  distributed separately (report by Nicolas Boulenguez).
+ modify configure script to add -g and/or -O3 to ADAFLAGS if the
  CFLAGS for the build has these options.
+ amend change from 20070324, to not add 1 to the result of getmaxx
  and getmaxy in the Ada binding (report by Nicolas Boulenguez for
  thread in comp.lang.ada).
+ build-fix Ada95/samples for gnat 4.5
+ spelling fixes for Ada95/samples/explain.txt
> fixes for Ada95 binding (Nicolas Boulenguez):
+ add item in Trace_Attribute_Set corresponding to TRACE_ATTRS.
+ add workaround for binding to set_field_type(), which uses varargs.
  The original binding from 990220 relied on the prevalent
  implementation of varargs which did not support or need va_copy().
+ add dependency on gen/Makefile.in needed for *-panels.ads
+ add Library_Options to library.gpr
+ add Languages to library.gpr, for gprbuild