fix(datepicker): date format in EcmaScript for firefox and others

src/datepicker/datepicker.js

@@ -509,7 +509,7 @@ function ($compile, $parse, $document, $position, dateFilter, dateParser, datepi
           ngModel.$setValidity('date', true);
           return viewValue;
         } else if (angular.isString(viewValue)) {
-          var date = dateParser.parse(viewValue, dateFormat) || new Date(viewValue);
+          var date = dateParser.parse(viewValue, dateFormat) || new Date(viewValue.replace(/-/g, '/'));
           if (isNaN(date)) {
             ngModel.$setValidity('date', false);
             return undefined;