+20160102
+ + modify ncurses c/C color test-screens to take advantage of wide
+ screens, reducing the number of lines used for 88- and 256-colors.
+ + minor refinement to check versus ncv to ignore two parameters of
+ SGR 38 and 48 when those come from color-capabilities.
+
+20151226
+ + add check in tic for use of bold, etc., video attributes in the
+ color capabilities, accounting whether the feature is listed in ncv.
+ + add check in tic for conflict between ritm, rmso, rmul versus sgr0.
+
+20151219
+ + add a paragraph to curs_getch.3x discussing key naming (discussion
+ with James Crippen).
+ + amend workaround for Solaris vs line-drawing to take the configure
+ check into account.
+ + add a configure check for wcwidth() versus the ncurses line-drawing
+ characters, to use in special-casing systems such as Solaris.
+