Fix for #4105

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@33971 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
#4213 getXML to settings, saves attributes that are not defaults, only

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@33972 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e