top-down order in onscreen logger

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28736 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
SVG icons as PNGs in different sizes

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28737 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Allow sharing from iOS

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28738 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
new Apple icons

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28739 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e