Refs #8388 Created new workspace normalised to lowest temp.

Tidied up some of the Elwin code at the same time.
Refs #8388 Missed passing option to save function.
Refs #8388 Fix compatibility with MSDfit.

Also copy logs from run to generated workspaces.
Refs #8388 eltWS wasn't initialised before use in one code path.
Merge branch 'feature/8388_correct_temp_normalisation'