This class should perhaps not be called `MultiAutoCompleteResourcesHandler` as this does not describe very well what it does...
Many different resources handlers could be used with the MultiAutoComplete, so what is special with this class?
In this class, the list of suggestions is provided as an array (in a similar way as with the `LCResourceHandler`), but there is support for range values to select multiple items at once. So perhaps it should be called `LCRangeResourceHandler`... or perhaps you can imagine a better name.