update JLaTeXMath (\cr on end of line)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@23931 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Many static killed, fileMenu refactored

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@23932 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e