Merge pull request #777 from YouPers/fix775

fix(each): each with empty array that has other property never calls final callback.  Closes #775

lib/async.js

@@ -221,7 +221,7 @@
     async.eachOf = function (object, iterator, callback) {
         callback = _once(callback || noop);
         object = object || [];
-        var size = object.length || _keys(object).length;
+        var size = _isArrayLike(object) ? object.length : _keys(object).length;
         var completed = 0;
         if (!size) {
             return callback(null);

test/test-async.js

@@ -1375,6 +1375,22 @@ exports['each empty array'] = function(test){
     setTimeout(test.done, 25);
 };
 
+
+exports['each empty array, with other property on the array'] = function(test){
+    test.expect(1);
+    var myArray = [];
+    myArray.myProp = "anything";
+    async.each(myArray, function(x, callback){
+        test.ok(false, 'iterator should not be called');
+        callback();
+    }, function(err){
+        if (err) throw err;
+        test.ok(true, 'should call callback');
+    });
+    setTimeout(test.done, 25);
+};
+
+
 exports['each error'] = function(test){
     test.expect(1);
     async.each([1,2,3], function(x, callback){