v1.6.11

• Redirect Lingo output to /dev/null during testing. Indicate error
  with appropriate exit code.
• Replace usage of command-line diff with cross-plattform Ruby implementation
  (requires diff-lcs).
• Provide alternatives to standard zip command on windows platforms.
• Use UNK itself if it doesn't have any lexicals.
• Use compo form instead of word form when lexicalizing compound entry for
  multiword dictionaries.
• Lingo::Language::LexicalHash#[] must use target (not source) form.
• Optionally, try to find matches for all lexicals a word has.
• Made - a PRINTABLE_CHAR.
• Allow synonyms to be considered for multiword matching.
• Don't use compound parts.
• Introduced some (more or less arbitrary) line length limit. We can only
  store values of a certain length anyway (with SDBM). Entries exceeding this
  limit will be rejected and logged in the .rev file.