ncurses 5.9 - patch 20140215

+ in-progress changes to win_driver.c to implement output without
  allocating a console-buffer.  This uses a pre-existing environment
  variable NCGDB used by Juergen Pfeifer for debugging (prompted by
  discussion with Erwin Waterlander regarding Console2, which hangs
  when reading in an allocated console-buffer).
+ add -t option to gdc.c, and modify to accept "S" to step through the
  scrolling-stages.
+ regenerate NCURSES-Programming-HOWTO.html to fix some of the broken
  html emitted by docbook.