Intersection curve tool on transformed limited quadric

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36536 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
toString() for Coords

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36537 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e