hdf5_ep

[svn-r5947] Purpose:
    Code cleanup

Description:
    Clean up ID->name code:
        - Reformat to better match library coding standard
        - Changed several algorithms to be more efficient
        - Integrated into library more smoothly

Platforms tested:
    eirene w/FORTRAN & C++
    arabica w/FORTRAN
    modi4 w/FORTRAN & parallel
    sleipnir