Add missgin gawk_bootstrap, it is required on the bootstrap image.
Filter non-rigged source packages from bootstrap image.

* Before, we were putting both rigged and standard source packages
  onto the bootstrap image, which caused the build to fail (because
  non-rigged source packages can only be built with git available).
app_server: Removed duplicate line of code...

for setting the filling rule. There are only two different rasterizers.
Use correct gawk_bootstrap version

This prevents rebuilding it every time jam is called.
Update x86-64 bzip2, openssl and vision packages.