+ modify c++/etip.h.in to accommodate deprecation of throw() and
throws() in c++17 (prompted by patch by Romain Geissler).
+ remove some incorrect calls for memory-leaks from 20170617 changes
(report by Allen Hewes).
+ add test-programs for termattrs and term_attrs.
+ modify _nc_outc_wrapper to use the standard output if the screen was
not initialized, rather than returning an error.
+ improve checks for low-level terminfo functions when the terminal
has not been initialized (Redhat #1345963).
+ modify make_hash to allow building with address-sanitizer,
assuming that --disable-leaks is configured.
+ amend changes for number_format() in 20170506 to avoid undefined
behavior when shifting (patch by Emanuele Giaquinta).
+ modify several test programs to use new popup_msgs, adapted from
help-screen used in test/edit_field.c
+ drop two symbols obsoleted in 2004: _nc_check_termtype, and
_nc_resolve_uses
+ fix some old copyright dates (cf: 20031025).
+ build-fixes for test/savescreen.c to work with AIX and HPUX.
+ minor fix to configure script, adding a backslash/continuation.
+ extend TERMINAL structure for ABI 6 to store numbers internally as
integers rather than short, by adding new data for this purpose.
+ more fixes for minor memory-leaks in test-programs.
+ modify test/knight.c to show the number of choices possible for
each position in automove option, e.g., to allow user to follow
Warnsdorff's rule to solve the puzzle.
+ modify test/hanoi.c to show the minimum number of moves possible for
the given number of tiles (prompted by patch by Lucas Gioia).
> fixes based on Coverity report:
+ remove a few redundant checks.
+ correct logic in test/bs.c, when randomly placing a specific type of
ship.
+ check return value from remove/unlink in tic.
+ check return value from sscanf in test/ncurses.c
+ fix a null dereference in c++/cursesw.cc
+ fix two instances of uninitialized variables when configuring for the
terminal driver.
+ correct scope of variable used in SetSafeOutcWrapper macro.
+ set umask when calling mkstemp in tic.
+ initialize wbkgrndset() temporary variable when extended-colors are
used.
+ add check in test/configure for use_window, use_screen.
+ add configure-checks for getopt's variables, which may be declared
as different types on some Unix systems.
+ add check in test/configure for some legacy curses types of the
function pointer passed to tputs().
+ modify init_pair() to accept -1's for color value after
assume_default_colors() has been called (Debian #337905).
+ modify test/background.c, adding commmand-line options to demonstrate
assume_default_colors() and use_default_colors().
+ correct limit-check in wredrawln, accounting for begy/begx values
(patch by David Benjamin).
+ fix most compiler warnings from clang.
+ amend build-fix for OpenSolaris, to ensure that a system header is
included in curses.h before testing feature symbols, since they
may be defined by that route.
+ add "widec" row to _tracedump() output to help diagnose remaining
problems with multi-column characters.
+ partial fix for refresh of window on top of multi-column characters
which are partly overwritten (report by Sadrul H Chowdhury).
+ ignore A_CHARTEXT bits in vidattr() and vid_attr(), in case
multi-column extension bits are passed there.
+ add setlocale() call to demo_panels.c, needed for wide-characters.
+ add some output flags to _nc_trace_ttymode to help diagnose a bug
report by Larry Virden, i.e., ONLCR, OCRNL, ONOCR and ONLRET,
