hdf5

Purpose: Fixed Packet Table issues
Description:
    - Removed calls to H5Tget_native_type from PT APIs because it is up to the
      application, whether it wants the buffer to be read into memory in the
      machine’s native architecture.  Currently, however, the PT doesn't
      allow an application to specify memory datatype.  Perhaps, a new API can
      be added to provide that capability.
    - Added calls to H5Tcopy to H5PTcreate/H5PTcreate_fl/H5PTopen to save a
      copy of the application's datatype or the dataset's datatype.
    - Added various missing H5Tclose to the packet table tests, and various
      error checkings.
    Note: leave out changes to test_packet_vlen.c for 1.8 to wait on QAK about
          merging the commit ec2fbe0883f9e76df60bcfbebbd4b6f62d5a09e6
          [svn-r30158] first.
Platforms tested:
    Linux/32 2.6 (jam)
    Linux/64 (platypus)
    Darwin (osx1010test)