Several RFB changes
- don't quit simulation on client disconnect (reverted to original behavior)
- don't wait for client connection on startup if timeout is set to 0
- RFB color handling rewritten to fix headerbar and statusbar colors in 8 bpp
  graphics modes (they no longer depend on VGA palette)
- set maximum resolution to 1280x1024 (same as vncsrv)
- minor other changes


git-svn-id: svn://svn.code.sf.net/p/bochs/code/trunk@11709 6c8e4198-a580-4521-a02f-c9ae86df1db9