+20160116
+ + tidy up comments about hardcoded 256color palette (report by
+ Leonardo Brondani Schenkel) -TD
+ + add putty-noapp entry, and amend putty entry to use application mode
+ for better consistency with xterm (report by Leonardo Brondani
+ Schenkel) -TD
+ + modify _nc_viscbuf2() and _tracecchar_t2() to trace wide-characters
+ as a whole rather than their multibyte equivalents.
+ + minor fix in wadd_wchnstr() to ensure that each cell has nonzero
+ width.
+ + move PUTC_INIT calls next to wcrtomb calls, to avoid carry-over of
+ error status when processing Unicode values which are not mapped.
+
+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.
+