4.0.0

Structural changes

• Point- and space group data have been distributed to single files for each group.
• Fractions that are added/subtracted with placeholder string symbols in $SpaceGroups are now operated on explicitly with the Plus/Subtract functions instead of the +/- operator in order to clear associated suggestion from the Wolfram linting, e.g., 1/2 + "x" is replaced by Plus[1/2, "x"].
• Placeholder symbols in $SpaceGroups and $TransformationMatrices(a, b, c, h, k, l) are now stored as strings to avoid explicitly setting the context to Global` .
• Now using a MaXrd.wl file in stead of Definitions.nb master notebook, and each function is defined in its designated file.
• Converted paclet context with publisher ID to conform to Paclet Repository structure.

Miscellaneous

• For FindPixelClusters, changed the default setting of "PixelDataFile" to FileNameJoin[{$MaXrdPath, "Kernel", "Data", "UserData", "PixelData.m"}].
• Changed structure of optional second argument of SymmetryEquivalentPositions and ExpandCrystal.
• For ImportCrystalData, renamed option "ExtractSubdata" to "ExtractSubData".
• Fixed a string concatenation bug in UnitCellTransformation.
• Changed some local variable names to avoid confusion.
• Renamed various error message names and local variables to longer, more understandable names.
• Minor bug fixes and typo corrections.