WL#1517: Enhance security

Affects: Server-5.0   —   Status: Un-Assigned   —   Priority: Medium

Provide real security to ndb as descibed in
"Management of Nodes" by hin

http://ndb.mysql.com/~ndb/cvsweb/cvsweb.cgi/ndb_repository/docs/implementation/RS03_027.ManagementOfNodes.txt?rev=1.2&content-type=text/x-cvsweb-markup