GLOBAL MARKETS-Stellar U.S. jobs data boosts dollar and stocks

* U.S. non-farm payrolls jump in September * U.S. futures rise, dollar hits 4-year high * Europe bounces but equities globally head for big weekly loss * Dollar bulls had been counting on a pick-up in hiring * Oil, gold fall, extend losses after recent plunge By Anirban Nag LONDON, Oct 3 (Reuters) - A strong improvement in the U.S. jobs market lifted the dollar to a four-year high against a basket of currencies on Friday while stocks also extended gains, taking heart fro