bug#4761 - more validation of hosts
bug#4511 - only non depricated should be saved in config
         - fix ConfigInfo::BOOL w.r.t deprication


mysql-test/ndb/ndb_config_2_node.ini:
  Removed need of unique filesystem
mysql-test/ndb/ndbcluster.sh:
  Removed need of unique filesystem
  Add "" around variables for increased portability
ndb/src/common/mgmcommon/ConfigInfo.cpp:
  Added checking of hostnames already in InitConfigFileParser
ndb/src/common/mgmcommon/ConfigRetriever.cpp:
  Add checking of hostnames when retreiving configuration
ndb/src/kernel/blocks/ndbfs/AsyncFile.cpp:
  Added ndb_%u to filesystempath
ndb/src/kernel/blocks/ndbfs/AsyncFile.hpp:
  Added ndb_%u to filesystempath
ndb/src/kernel/blocks/ndbfs/Filename.cpp:
  Added ndb_%u to filesystempath
ndb/src/kernel/blocks/ndbfs/Filename.hpp:
  Added ndb_%u to filesystempath
ndb/src/kernel/blocks/ndbfs/Ndbfs.cpp:
  Added ndb_%u to filesystempath