collections

We have injectIntoIndex on primitive OrderedIterables (e.g. OrderedIntIterable), but not on the object equivalent OrderedIterable.

To repoduce:

1. Add first hook (before.update)
2. Add second hook (before.update)
3. remove first hook
4. remove second hook
5. update a entry --> second hook is called.

Problem is in de splice call "len":
remove () {
self._hookAspects[method][pointcut].splice(len - 1, 1)

Len was stored when inserting the hook in the array. However due to the removal of t