+20070331
+ + modify Ada95 binding to build with --enable-reentrant by wrapping
+ global variables (bug: acs_map does not yet work).
+ + modify Ada95 binding to use the new access-functions, allowing it
+ to build/run when NCURSES_OPAQUE is set.
+ + add access-functions and macros to return properties of the WINDOW
+ structure, e.g., when NCURSES_OPAQUE is set.
+ + improved install-sh's quoting.
+ + use mkdirs.sh rather than mkinstalldirs, e.g., to use fixes from
+ other programs.
+
+20070324
+ + eliminate part of the direct use of WINDOW data from Ada95 interface.
+ + fix substitutions for termlib filename to make configure option
+ --enable-reentrant work with --with-termlib.
+ + change a constructor for NCursesWindow to allow compiling with
+ NCURSES_OPAQUE set, since we cannot pass a reference to
+ an opaque pointer.
+