hdf5_msb

[svn-r3935] Purpose:
    Test Addition
Description:
    I added a small test to determine if the MPI library has a working
    version of the MPI_Get_count() function. If it does, then I define
    the macro:

            MPI_GET_COUNT_WORKS

    This should (hopefully) take care of the kludges in H5FDmpio.c...

    NOTE: This isn't implemented in the H5FDmpio.c file since I don't
    know the code in there and don't know which solution will work. Also,
    the test program I put into the configure script needs to be checked
    on a platform which does have a working MPI_Get_count()
    function...I.e., this is just a first stab.
Platforms tested:
    Linux