Currency tops psychologically significant $1.50 mark last done in Aug. 2008The euro broke through $1.50 against the dollar for the first time in 14 months Wednesday as a recovering stock market further sapped the U.S. currency’s appeal as a safe-haven investment.The dollar’s slide came despite recent supportive comments from Treasury Secretary Timothy Geithner and senior European finance officials, who are growing increasingly anxious about the euro’s appreciation. A stronger euro makes European