Using globs for file copying prevents cmake from discovering newly added icons.
Writing rules that explicitly use lists of icons will fix this as a new icon
in the sources will have to be added to the list and will force reparsing by
cmake. We have to maintain the lists anyway for our dist target so there's
actually no extra work involved for the devs.
SVG icon doesn't open with latest librsvg (2.48) due to bad URI.
XML parse error: error code=99 (3) in (null):10:72: xmlns:sodipodi: 'http://inkscape.sourceforge.net/DTD/s odipodi-0.dtd' is not a valid URI
