+ fix errata for ncurses-howto (report by Damien Ruscoe).
+ fix a few places in configure/build scripts where DESTDIR and rpath
were combined (report by Thomas Klausner).
+ merge current st description (report by Harry Gindi) -TD
+ modify flash capability for linux and wyse entries to put the delay
between the reverse/normal escapes rather than after -TD
+ modify program tabs to pass the actual tty file descriptor to
setupterm rather than the standard output, making padding work
consistently.
+ explain in clear's manual page that it writes to stdout.
+ add special case for verbose debugging traces of command-line
utilities which write to stderr (cf: 20161126).
+ remove a trace with literal escapes from skip_DECSCNM(), added in
20161203.
+ update config.guess, config.sub from
http://git.savannah.gnu.org/cgit/config.git
+ correct parmeters for copywin call in _nc_Synchronize_Attributes()
(patch by Leon Winter).
+ improve color-handling section in terminfo manual page (prompted by
patch by Mihail Konev).
+ modify programs clear, tput and tset to pass the actual tty file
descriptor to setupterm rather than the standard output, making
padding work.
+ modify tset -w (and tput reset) to update the program's copy of the
screensize if it was already set in the system, to improve tabstop
setting which relies upon knowing the actual screensize.
+ add functionality of tset -w to tput, like the "-c" feature this is
not optional in tput.
+ add "clear" as a possible link/alias to tput.
+ improve tput's check for being called as "init" or "reset" to allow
for transformed names.
+ split-out the "clear" function from progs/clear.c, share with
tput to get the same behavior, e.g., the E3 extension.
