[REVIEW] Make controller instantiation customizable

[Greg Brown]

>>> But I guess this flag does not help with e.g. the include directive
>>> which uses the current class path, right?
>> 
>> I'm not sure what you mean by that.
>> 
> 
> Well if have an project structure like this;
> 
> src
> + my.package.test
>   HeaderPart.fxml
> + my.package.test.ui
>   ApplicationView.fxml
> 
> and where ApplicationView.fxml looks like this:
> 
> <BorderPane>
> <top>
>  <fx:include source="/my/package/test/HeaderPart.fxml" />
> </top>
> <center>
>  <!-- -->
> </center>
> </BorderPane>
> 
> If you now want to render a preview of the document the FXMLLoader
> locates the file by walking the Classpath so to render the preview I'll
> have to make up the complete classpath (well including even libraries
> defined).

Includes are still resolved when "staticLoad" is set to true.