+20120826
+ + increase size of ncurses' output-buffer, in case of very small
+ initial screen-sizes.
+ + fix evaluation of TERMINFO and TERMINFO_DIRS default values as needed
+ after changes to use --datarootdir (reports by Gabriele Balducci,
+ Roumen Petrov).
+
+20120825
+ + change output buffering scheme, using buffer maintained by ncurses
+ rather than stdio, to avoid problems with SIGTSTP handling (report
+ by Brian Bloniarz).
+
+20120811
+ + update autoconf patch to 2.52.20120811, adding --datarootdir
+ (prompted by discussion with Erwin Waterlander).
+ + improve description of --enable-reentrant option in README and the
+ INSTALL file.
+ + add nsterm-256color, make this the default nsterm -TD
+ + remove bw from nsterm-bce, per testing with tack -TD
+