Release 1.8.4.2b
talismane_core/TalismaneConfig: new option - includeUnknownWordResults to create additional separate f-score files for words known and unknown in lexicon
talismane_core/PosTagOpenClassIndicator: added new class: PUNCTUATION, for special handling
talismane_core/PosTagRegexBasedCorpusReaderImpl: changed regex to reluctant from greedy to ease handling of optional placeholders
talismane_en: fixed punctuation tag class
talismane_fr: fixed punctuation tag class
talismane_lefff: fixed punctuation tag class
talismane_machine_learning: fixed IMPORTANT bug - was using descriptor instead of modifiedDescriptor in cache
talismane_other: addedPosTaggerStatistics for statistics on pos-tagger corpora