wrong version of fonts.css

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28778 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
create CAS substitute GUI on the EDT - see http://docs.oracle.com/javase/tutorial/uiswing/concurrency/dispatch.html

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28779 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
better solution to [28779]

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28781 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
missing </script>

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28783 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e