#3857: IE can finally distinguish touch and mouse events

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@30492 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
shaders : lights

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@30493 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e