0.4.2.18

Removed operations from the blacklist to make them available in the user interface:

• Skeletonize
• StackToTiles
• Median3DSphere
• Median2DBox
• Median2DSphere
• OpeningDiamond
• BinaryFillHoles
• BinaryFillHolesSliceBySlice

See also: https://github.com/clij/clijx/releases/tag/0.30.1.18