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git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@31196 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
4.9.239.0

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@31197 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Ticket #3957: very important fix for GGBQuill - not related to the ticket, by the way

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@31198 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e