new define for long signal section size
   bumbed up limit for attributes to 128
    use new define in SectionSegment
    some bug fixing of send fragmented signal +
    make chunk size a multiple the dew define for SectionSegment size


mysql-test/r/ndb_basic.result:
  added test for max limit of 128 attributes in table
mysql-test/t/ndb_basic.test:
  added test for max limit of 128 attributes in table
ndb/include/kernel/ndb_limits.h:
  new define for long signal section size
ndb/include/ndbapi/ndbapi_limits.h:
  bumbed up limit for attributes to 128
ndb/src/kernel/vm/LongSignal.hpp:
  use new define in SectionSegment
ndb/src/ndbapi/TransporterFacade.cpp:
  some bug fixing of send fragmented signal +
  make chunk size a multiple the dew define for SectionSegment size