Cleanup some comments around SVG conversion.
Cleanup some comments around SVG conversion.

ocefpaf/mplleaflet,ocefpaf/mplleaflet,zeapo/mplleaflet,BibMartin/mplleaflet,zeapo/mplleaflet,jwass/mplleaflet,BibMartin/mplleaflet,jwass/mplleaflet