November 11, 2010Cramer's 'Mad Money' Recap: Gold Rush (Final)NEW YORK (TheStreet) -- Gold is not just another commodity, Jim Cramer told the viewers of his Mad Money TV show as he once again urged investors to put up to 20% of their portfolios into gold.Unlike other commodities such as oil, grain or copper, gold is a currency, he said, adding it is what people buy when they do not trust their o