(general server part + NDB part)
automatically when creating a binary package,
include only the NDBpart in the package (file) name.

scripts/make_binary_distribution.sh:
  The "version" string of a cluster build contains information
  about both the general server part and the NDB part.
  This is intentional, but it isn't suitable for the package file name.
  
  When packaging a binary build, the script now detects whether
  it is dealing with a cluster build or not.
  If it is a cluster build, the script now removes the server part
  from the version number, leaving the NDB part.
  
  Example:  "5.1.31-ndb-6.4.2"  ->  "6.4.2"
  so packages are named like
            "mysql-cluster-gpl-6.4.2-linux-i686-glibc23.tar.gz"