Version 3.0: New: display sample soups in an overlay. (Thanks Scorbie for the
             idea.)

Version 2.3: Improved: breadcrumbs navigation now tries to follow symmetry if 
             possible.

Version 2.2: New: rudimentary breadcrumbs navigation.

Version 2.1: Bugfix: correctly decode apgcodes containing multiple w's or x's.
             (Thanks Rich Holmes for the bug report.)

Version 2.0: New: allow downloading objects as RLE.

Version 1.2: New: link main rule/symmetry census pages in sample soup table.

Version 1.1: Bugfix: only consider soup links in the "sample soup" section.

Version 1.0: Initial release.