By Lawrence Delevingne and Amanda Cooper (Reuters) -Global stock markets rose on Wednesday, as U.S. consumer confidence rebounded in December, and the dollar regained stability after the Bank of Japan rocked markets with a surprise decision to loosen its grip on government bond yields. The MSCI All-World index rose about 1.2% on the day, although it is on track for a more than 3% decline in December. This year, the index is set to have fallen for eight out of 12 months, on a par only with 2008 for the number of monthly losses in a calendar year on record. On Wall Street, the Dow Jones Industri…