- fixed bug that causes a source to crash when it gets stopped before it
was instantiated
- small performance improvement when adding a lot of items
- added a new source service which is capable of enriching information
objects with scaled versions of their images. Scaling is done without
any external service
- url decoding is done only for splitted parameters now which enables
the usage of urls as parameters in rest calls like attachImage for
information objects
- keeping state of sources to automatically restart after property
change
- added width and height attributes to images
- changed behavior of deletion of referenced items to force the deletion
after "one of the objects in deleteOnDelete is deleted" instead of the
"last item is deleted"