scripts/make_binary_distribution.sh:
  As of 5.1, any package will contain both an optimized and a debugging server,
  built with identical configuration (features / table handlers).
  This "mysqld-debug" must be contained in the package.
  Also, the server will not be stripped any more.
  Also, get rid of the old compatibility symlink "safe_mysqld" dating back to 4.0.