GLOBAL MARKETS-Italian tensions in focus as emerging markets steady

* Italian stocks, bonds fall on Berlusconi threat * U.S. housing data tempers September Fed tapering view * Stocks mostly higher, gold briefly tops $1,400 an ounce * Currency markets subdued, dollar finds support after dip By Marc Jones LONDON, Aug 26 (Reuters) - Domestic political tensions drove Italian shares and bonds lower on Monday, while a steady dollar and lower U.S. debt yields gave battered emerging markets a second day of relative calm. The dollar slipped again