yootil.remove

If the __remove function is too complicated/confusing or not needed I can just simplify things.
Can we clean this up a bit?  Either add a comma or add a semi-colon and dupe var below to contain it.  Right now I think it is interpreted as this:
````
    var array;
    _nav = blah;
````

And that means nav is a global variable instead of scoped.