update defaults for missing output data attributes in HDF5MeshIO.write()
update defaults for missing output data attributes in HDF5MeshIO.write()

- only mode and data are required

rc/sfepy,lokik/sfepy,lokik/sfepy,RexFuzzle/sfepy,vlukes/sfepy,lokik/sfepy,sfepy/sfepy,RexFuzzle/sfepy,BubuLK/sfepy,BubuLK/sfepy,RexFuzzle/sfepy,vlukes/sfepy,sfepy/sfepy,rc/sfepy,rc/sfepy,RexFuzzle/sfepy,sfepy/sfepy,vlukes/sfepy,lokik/sfepy,BubuLK/sfepy