Update for changes as I attempt to expand the complexity of the setup.
Attempts to create a more "realistic" experimental area failed ... miserably.
Update to changes in the construction files.  Adding in a start to the beamline construction file.
Adding the new files which I forget to add in the last commit.
Added rotations to the polarimeter so it now rotates to 28 degrees to the right of the downstream beam line at 8.7 meters away.  Needs a bit more work.  Added downstream and upstream beamlines.  Added concrete shell to the hall but it needs mods to its dimenions.  Materials updated.  License removed from *.cc files but not *.hh files (yet).  Primary action generator changed.
Merge branch 'JeffersonLab-tireman'  -- proceed.