(from <Someone>)

(from <Someone>)
What's in it:
some MessageBox tidbits:
- Let all MessageBoxes display an icon
- Introduced NHMessageBox to have messageboxes display a consistent title
- Change icon in mswin_display_file from MB_ICONERROR to MB_ICONEXCLAMATION
  for non-fatal error
And to solve #U355: NetHackW won't run on Win2K OS:
- Avoid a crash when closing the main window while the splash screen is
  displayed.
- Make sure NetHack starts normal when closed minimized
- Center the splash screen on the screen, not on the parent window
  (which may be off-screen)

What's new in it:
- Show copyright banner in textbox in splash screen instead of over the picture
- Show news in splash screen only if iflags.news (solves W341-6)
- show complete version information in splash screen when it is used as about box)

[Also reverse the numkey patch in main trunk]