Now when a user activates an article (by clicking on it, or by using Alt-Up/Down shortcuts),
corresponding dictionary in the "found in dictionaries" pane is selected.
See Issue #22.
P.S. Lingvo behaves in the same way too.
Previously the program could only safely find two-word compounds. Now it always
finds all of them, even if they are large sentences with many words.
To choose the source for compounds, a notion of dictionary features was added.
It may be utilized later for some more interesting things.
