• Added reprojection support via mapshaper-proj, a JS port of the Proj.4 projection library.
• The -proj command takes a proj4 string or an alias.
• The -proj densify option interpolates vertices so long, straight segments can transform into curved lines.
• The -projections command lists all supported proj4 projections and aliases.
• Mapshaper now parses the .prj files of Shapefiles to identify their coordinate system.