Tweaked test, fixed error

Author: wesleycho

src/jqLite.js

@@ -362,7 +362,7 @@ function jqLiteRemoveClass(element, cssClasses) {
   if (cssClasses && (element.setAttribute || msie === 9)) {
     forEach(cssClasses.split(' '), function(cssClass) {
       setter(trim(
-          (" " + (element.getAttribute('class') || '') + " ")
+          (" " + (element.getAttribute('class') || element.className || '') + " ")
           .replace(/[\n\t]/g, " ")
           .replace(" " + trim(cssClass) + " ", " "))
       );

test/jqLiteSpec.js

@@ -714,7 +714,7 @@ describe('jqLite', function() {
       });
 
       it('should allow adding of class in IE9', function() {
-        if (msie !== 9) return; // IE9 doesn't support node.setAttribute
+        if (!(jqLite(a).setAttribute && jqLite(a).getAttribute)) return; // IE9 doesn't support node.setAttribute
         var selector = jqLite([a, b]);
         expect(selector.addClass('abc')).toBe(selector);
         expect(jqLite(a).hasClass('abc')).toBe(true);