Generate Universally Unique IDentifier (UUID) for Drupal objects.

Current features include:

    * Automatic UUID generation/loading/deleting for nodes, node revisions, 
      users, roles, files and taxonomy.
    * Transparently create UUIDs for objects which don't have one.
    * Pluggable UUID generator backend.
    * Sub modules to enable UUID for different entities.
    * API for implemening UUIDs for contrib entities.

Please read uuid_ossp/README.txt before enabling the uuid_ossp module.
