+20170930
+ + fix a symbol conflict that made ncurses.c C/c menu not work with
+ Solaris xpg4 curses.
+ + add refresh() call to dots_mvcur.c, needed to use mvcur() with
+ Solaris xpg4 curses after calling newterm().
+ + minor fixes for configure script from work on ncurses-examples and
+ tin.
+ + improve animation in test/xmas.c by adding a time-delay in blinkit().
+ + modify several test programs to reflect that ncurses honors existing
+ signal handlers in initscr(), while other implementations do not.
+ + modify bs.c to make it easier to quit.
+ + change ncurses-examples to use attr_t vs chtype to follow X/Open
+ documentation more closely since Solaris xpg4-curses uses different
+ values for WA_xxx vs A_xxx that rely on attr_t being an unsigned
+ short. Tru64 aka OSF1, HPUX, AIX did as ncurses does, equating the
+ two sets.
+