VIENNA (Reuters) - Measures taken this year by policymakers to address the economic crisis in the euro zone allow for cautious optimism regarding 2013, European Central Bank ratesetter Ewald Nowotny said on Friday. Nowotny welcomed the launch of a permanent rescue fund for struggling euro zone countries, a framework for common bank supervision by the ECB, and a deal to continue supplying aid to Greece. "Altogether these are important measures that allow for cautious optimism for a way out of the crisis in 2013," Nowotny said in a statement. ...