Re #7071. Changing valid-to date to 2013-05-31.
Old POWGEN geometry from new system.

This has the new K4 position from survey and alignment and was
generated using mantigeometry code tagged POWGEN-2013-06-01.
Re #6723 and #7071.
Re #7071. PG3 geometry for new cycle with wrong positions for some.
Merge remote branch 'origin/feature/7071_powgen_geometry'