ncurses 5.9 - patch 20140927

+ implement curs_set in win_driver.c
+ implement flash in win_driver.c
+ fix an infinite loop in win_driver.c if the command-window loses
  focus.
+ improve the non-buffered mode, i.e., NCURSES_CONSOLE2, of
  win_driver.c by temporarily changing the buffer-size to match the
  window-size to eliminate the scrollback.  Also enforce a minimum
  screen-size of 24x80 in the non-buffered mode.
+ modify generated misc/Makefile to suppress install.data from the
  dependencies if the --disable-db-install option is used, compensating
  for the top-level makefile changes used to add ncurses*-config in the
  20140920 changes (report by Steven Honeyman).