Changelog:
- updated Catalan dictionary; added and improved rules
- improved and cleaned up Dutch rules
- updated English spellchecker dictionary; added and improved rules
- added and improved French rules
- extended German dictionary; added and improved rules
- small updates for Polish rules
- added and improved Portuguese rules; added words and POS data; fixed false positives
- added words and POS data; improved Russian chunker rules; fixed false positives
- updated Spanish dictionary; added and improved rules
- new Ukrainian rules and words in the POS dictionary; improved tokenization, tagging, and disambiguation