Issue #4 Test Failures:
   -- This fixes some (but not all) of the tests.
      Main fixes are from the tests not correctly using
      newer interfaces or other such things.

  -- Additional fix because I wanted to display the bilbau model
     and added that to the main list along with fixing the materials
     naming issue by changing "Aluminium6061" to "Aluminium".

  -- Started adjusting the position of the pipes in the ESS moderator
     sample.