Move prepare_x11vnc_dist.sh over to x11vnc repo.
Move VisualNaCro to https://github.com/LibVNC/VisualNaCro.
Move vncterm to https://github.com/LibVNC/vncterm.
The HAVE_X11 define is not there anymore, but we don't need it either.
Merge branch 'master' of https://github.com/LibVNC/libvncserver