added missing copyright text
    moved ndb_init things to separate header file
    removed ndb_global include
    documented cluster connection class
    moved internal constants to NdbImpl.hpp class
    changed wait_until_ready behaviour somewhat


ndb/config/type_ndbapitest.mk.am:
  corrected -I flag
ndb/include/Makefile.am:
  added ndb_init.h to distribution
ndb/include/ndb_global.h.in:
  added copyright text
  moved ndb_init things to separate header file
ndb/include/ndbapi/NdbBlob.hpp:
  moved error codes and internal constants to NdbBlobImpl.hpp
ndb/include/ndbapi/NdbReceiver.hpp:
  removed ndb_global include
ndb/include/ndbapi/ndb_cluster_connection.hpp:
  documented cluster connection class
  changed wait_until_ready behaviour somewhat
ndb/src/ndbapi/Ndb.cpp:
  documented cluster connection class
  changed wait_until_ready behaviour somewhat
ndb/src/ndbapi/NdbBlob.cpp:
  moved internal constants to NdbImpl.hpp class
ndb/src/ndbapi/NdbDictionaryImpl.cpp:
  moved internal constants to NdbImpl.hpp class
ndb/src/ndbapi/NdbOperationInt.cpp:
  changed includes
ndb/src/ndbapi/ndb_cluster_connection.cpp:
  changed wait_until_ready behaviour somewhat
ndb/test/ndbapi/testBlobs.cpp:
  use impl class to get constants