fix for preselected values (Issue #404)

src/select.js

@@ -679,7 +679,7 @@
               if (!inputValue) return resultMultiple; //If ngModel was undefined
               for (var k = inputValue.length - 1; k >= 0; k--) {
                 if (!checkFnMultiple($select.selected, inputValue[k])){
-                  checkFnMultiple(data, inputValue[k]);
+                  resultMultiple.unshift(inputValue[k]);
                 }
               }
               return resultMultiple;