The reading of the alignment tensor component of XML formatted results and state files has been
modified. Previously the data_store.align_tensor.AlignTensorData._update_object() method for
updating the alignment tensor object (for values, errors, simulations) was being called once for
each Monte Carlo simulation. Now is it called only once for all simulations. In one test, the
reading of the save file with 500 simulations dropped from 253.7 to 10.0 seconds.
