Enable full resolution display of photos

[ghost]

To be able to view the full resolution image the property containing the file path should not declare a local file path but a configurable path. So imagine each event is declared as directory and contains all event images it would be good to have the configuration option for the path content to export. so lets give it e.g. a new config attribute "directoryHierarchyCutoffLevels" to specify the export path:

/home/rubach/privee/200910_australia/

As a result the property value for the above configuration could be:

200910_australia/DSC_00001.jpeg or (in case of subdirectories
200910_australia/day1/DSC_00001.jpeg

Having the option with html.gfi to make it a link will make it possible to declare web accessible references.