iRel interface updates

[Tim Tautges]

I think the iBase_EntityIterator should go in iBase.h, since that's where iBase_EntityHandle and iBase_EntitySetHandle are.

- tim

On 07/09/2010 02:24 PM, James Porter wrote:
> A couple other things that I think should be addressed:
>
> * Add iRel_getDescription to return some text describing the last error
>    in iRel
>
> * Where should iBase_EntityIterator be defined? iBase.h? Should
>    i(Mesh|Geom)_EntityIterator be changed to iBase?
>
> - Jim
>
>

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              Tim Tautges            Argonne National Laboratory
          (tautges at mcs.anl.gov)      (telecommuting from UW-Madison)
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