Todo: the example should come with the default Carrot2 algorithms preconfigured (by name) and with
sensible default attribute XMLs. The benefit is twofold - better out-of-the-box source for copy-pasting and a clear indication where overridden resources must be located.
We should provide the defaults for Lingo, STC and kmeans perhaps.
Another thing is that LEXICAL_RESOURCES_DIR no longer reflects the true purpose of that folder... perhaps it should be aliased to something more sensible.