(up)load /order / sync of materials

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36272 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
merged callbacks, avoid new

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36273 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e