Change default selection of imageset for the BeanWriter

Using the BeanWriter tool you can choose the imageset that is used in the image return methods. If you created your own set, you can choose between your set and the default HippoGalleryImageSet.

This last one is selected by default. That seems not logical, you most probably want to use your own one. This could be changed in such a way that:

• the latest created set is the default, or
• the user has to make an explicit choice every time.