4.9.141.0

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@25804 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
[giac] add error handling to JNI Thread

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@25808 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e