Comment 8 for bug 722544

I've added your new code in as revision 208 as is. I'm not sure if anges in the range [270, 350[ should be automatically converted to the negative form, though, because:
 - negative angles are less intuitive to some people (less of an issue since Scoured files are not intended to be read by humans, although it helps to be able to read through them);
 - [270, 350[ maps to the range ]-10, -90], which takes the same number of characters to represent;
 - having a negative sign more often may upgrade the character - in the Huffman tables of .svgz files at the expense of the digits or some letters, thus reducing compression efficiency.

I may revisit this later and change that behavior. Thanks for your code submissions :)