FOREX-Dollar eases as euro falls on ECB speculation

* Euro hits lowest since January 2013 against Swiss franc * Commodity currencies gain (Adds New York open, quotes; NEW YORK, Aug 27 (Reuters) - The dollar softened on Wednesday as traders focused on riskier currencies, while the battered euro hit a 19-month low against the Swiss franc amid speculation the European Central Bank will resort to quantitative easing. Buying of the Australian dollar ...