SymCACP 1.1 changes
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- Detection of symmetrical seed to use Geometry and Universe size
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  This is important for correct diagonal and checkerboard geometries.

- Update available
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  Under "about" menu item to check for changes.
  
- List of changes
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  Under "about" menu item to list changes in each release.
  
- Additional Seed values
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  For Checkerboards that require symmetric initial pattern define
  4 - one cells like 1 but one cell further away (2), 
  5 - one cells like 2 but one cell further away (-2),
  6 - two cells like 3  but one cell further away (3),
  7 - two cells like 1+4
  8 - two cells like 2+5
  9 - four cells like 3+6
  
