Enforce array result in multiple mode

One more inconsistence is fixed.
Example.
```js
var target = document.createElement('div');

//I can’t use that method
checkNodes(tinyEl.call(within, target, true));

//before fix
tinyEl(target, true) //returns target

//after fix
tinyEl(target, true) //returns [target]
```

Now it wraps target to list in multiple mode.