Drawj2d 1.2.4 released

This release brings improvements for reMarkable users. The image command writes smaller rM notebook files. The single line font supports all Basic Latin and Latin-1 glyphs (and Greek, Latvian, Polish, Russian letters).

Changes:
- image file.pdf (-T rm,bgd): draw single lines (instead of outlines)
- image file.svg (-T rm,bgd): draw single lines (instead of outlines)
- image scan.png (-T rm): approximate image with fewer lines, adjust line width to resolution
- font Lines plain: latin-1 completed
- fix line width for rm output
- library update: svgsalamander

[A. Vontobel]

Thanks blixten for the contribution of the missing Latin-1 glyphs £, ¤, ¥, ¬, ®, ¶.
font Lines plain now supports 398 glyphs, covering many European languages and a few mathematical symbols.

font Lines italic supports many latin letters.