v1.6.7: Rakefile: Added files for Porter stemmer to packages. Fixed that LP_F…

• Initiale Bereitstellung von Lingo in Subversion
• BUGFIX: Token wurden durch den Caching-Mechanismus in ihrer Schreibweise
  verändert (Groß-/Kleinschreibung).
• Englische Wörterbücher, ein Beispiel-Artikel und eine Konfiguration für das
  Englische wurden aufgenommen. Aufruf mit lingo.rb -c lingo-en.cfg -l en <datei>.
• Integration der Testumgebung für Entwickler.
• Die Attendees in den Lingo-Konfigurationsdateien werden automatisch
  verkettet. Dies erspart mühsame Verlinkung von Hand und macht die
  Konfiguration lesbarer.
• Modified parameters for Tokenizer and building of databases to handle UTF-8
  correctly. Printable characters from the ASCII charset and every UTF
  character greater than x80 is now recognized as a non word breaking
  character. so now diacritical characters are handled well.
• Added a command line option -p for lingo.rb for making detailed
  performance mesurements possible for each single attendee.
• Allow Lingo.new to be called from a different directory. (Still need to
  Dir.chdir to #talk because of the dictionaries...).
• Allow Textreader to read from STDIN.
• Allow Lingo to be called from an external library or program; pass a string
  and get an array back.
• Allow Textwriter to write to STDOUT.
• Match suffixes case-insensitively.
• Don't exclude synonyms that are eponymous with the original word.
• Don't stop variating hyphenated words if any component was taken as-is.
• Basic Ruby 1.9 compatibility.
• Words should be counted per record, not per document, in LIR mode.
• Added Porter stemmer.