[fa] Update Persian module

* Add PersianWordRepeatBeginningRule based on English one
* Add more test to Persian sentence tokenizer
* Fix typo in Persian rules test folder name
[fa] Rename packages
[fa] Enable PersianWordRepeatBeginning
[fa] Update grammar.xml
Merge pull request #167 from ebraminio/master

[fa] Update Persian module
[ta] Added a rulegroup & 2 rules
[de] set fsa.dict.speller.ignore-diacritics=false, this speeds up spell check suggestions by a factor of about 2
[pl] kupki smakowe → kubki smakowe
[ta] Updated & expanded 'illamal'
[fa] fix a typo on test