Use Hash#key? instead of #has_key?.
lib/lingo/attendee/multi_worder.rb: Fixed var name. (5675545)
lib/lingo/database.rb (config_hash): Fixed array value.
lib/lingo/attendee/*.rb (control): Explain empty method bodies.
test/: Added test for lexicalized compound. (33346b8)
Streamline use of KEY_REF.

lib/lingo/language/dictionary.rb (find_synonyms): There should be no need to delete KEY_REFs.
de/lingo-dic.txt: Added more gender information. (Part 1)

Source http://de.wiktionary.org/.
de/lingo-dic.txt: Added more gender information. (Part 2)

Source http://de.wiktionary.org/.