[h-e-w] Some issues with ntemacs 21.1

[Tim Van Holder]

* ntemacs 21.1 chokes on loading term/w32-win.el; it gets an access
  violation due to trying to read address 0x00000020.
  IIRC the x-close-connection stuff (around line 1147) is what
  triggered it.

* I've also experienced a similar crash (reading address 0x00000010)
  when exiting emacs.  There the cause was less clear, though it
  may have been caused by mistakenly setting frame-width to 1132
  instead of 132.

* ntemacs 21.1 -nw uses the height of the scrollback buffer,
  not the window height as frame height, making the editor pretty
  much unusable that way.