Cleaning (#3769)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@31424 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
processMode with callback. (#3769)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@31425 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e