Blender Git Loki

Icons: Resaved blender_icons.svg in new Inkscape version

Inkscape often does a number of unrelated changes when saving an SVG, not sure
if these are just formatting changes in the source SVG text or if there's more
to it. Either way this makes adding new icons hard since you want to avoid
these unrelated changes. Saving the file in a new Inkscape version every once
in a while should mitigate the problem a bit.
Regenerating the icons (e.g. through `make icons`) shows no difference in the
output.

Note that I also ran "Clean Up Document" in Inkscape, but that doesn't seem to
have changed anything/much.