Changelog:
- added and improved Catalan rules
- added and improved Dutch rules
- added and improved English rules; updated en_GB spellchecker dictionary to v.3.2.1
- added and improved French rules
- added and improved rules and extended German dictionary
- added and improved Portuguese rules; added words and POS data; fixed tons of false positives
- added and improved Spanish rules
- new rules and new words in Ukrainian POS dictionary
- also minor rule improvements for Galician, Ukrainian, Belarusian, Esperanto, Arabic, and Russian.