Fix for #4070

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@31652 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
#3871 progress implementing in PNaCl in GeoGebraWeb

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@31653 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
More fixes for #4070

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@31654 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e