This patch solves some major problems of the svg script :
- reading of the inkscape svg format
- parsing of the scientific numbers
- redundant arc data in the same path for only one command "a"
- blending of curves after several files import and at the end a more correct management of the current point.
slight change to the fix suggested, the svg imported was assuming that
"fill:" and "#" being in a string meant there was "fill:#", but the # could be used for other properties.
