+20080322
+ + fill in extended-color pair two more places in wbkgrndset() and
+ waddch_nosync() (prompted by Sedeno's patch).
+ + fill in extended-color pair in _nc_build_wch() to make colors work
+ for wide-characters using extended-colors (patch by Alejandro R
+ Sedeno).
+ + add x/X toggles to ncurses.c C color test to test/demo
+ wide-characters with extended-colors.
+ + add a/A toggles to ncurses.c c/C color tests.
+ + modify test/ditto.c to use use_screen().
+ + finish modifying test/rain.c to demonstrate threads.
+
+20080308
+ + start modifying test/rain.c for threading demo.
+ + modify test/ncurses.c to make 'f' test accept the f/F/b/F/</> toggles
+ that the 'F' accepts.
+ + modify test/worm.c to show trail in reverse-video when other threads
+ are working concurrently.
+ + fix a deadlock from improper nesting of mutexes for windowlist and
+ window.
+
+20080301
+ + fixes from 20080223 resolved issue with mutexes; change to use
+ recursive mutexes to fix memory leak in delwin() as called from
+ _nc_free_and_exit().
+