fix trailing whitespace leading to empty string in .array() retval

Author: tj

index.js

@@ -143,7 +143,8 @@ ClassList.prototype.toggle = function(name){
  */
 
 ClassList.prototype.array = function(){
-  var arr = this.el.className.split(re);
+  var str = this.el.className.replace(/^\s+|\s+$/g, '');
+  var arr = str.split(re);
   if ('' === arr[0]) arr.shift();
   return arr;
 };

test/classes.js

@@ -84,7 +84,7 @@ describe('classes(el)', function(){
     })
 
     it('should ignore leading whitespace', function(){
-      el.className = '  foo bar baz';
+      el.className = '  foo bar    baz';
       var ret = classes(el).array();
       assert('foo' == ret[0]);
       assert('bar' == ret[1]);
@@ -93,7 +93,7 @@ describe('classes(el)', function(){
     })
 
     it('should ignore trailing whitespace', function(){
-      el.className = 'foo bar baz     ';
+      el.className = 'foo bar   baz     ';
       var ret = classes(el).array();
       assert('foo' == ret[0]);
       assert('bar' == ret[1]);