• Added -proj background= option as an alias for nodata-color=.
• Made white the default background color when reprojecting image rasters (for when the projected image is not rectangular).
• Added -o jpeg-quality=<1..100> when generating JPEGs as image layers in SVG output files (default is 85).
• Added -o linked-images, which saves embedded images as external files linked-to from an SVG file.