5.0.53.0

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@38219 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
fix for (1,2,3) + Vector[(10,20,30)]

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@38220 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
fix for saving font size (revert part of r38153)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@38221 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Ticket #4798: thinking cleared, workaround found for the web case

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@38222 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e