* add unittest for explosion#12311
* create punctuation.py for swedish
* removed : from infixes in swedish punctuation.py
* allow : as infix if succeeding char is uppercase
* Added the same punctuation rules as danish language.
* Added abbreviations and also the possibility to have capitalized abbreviations on some. Added a few specific cases too
* Added test for long texts in swedish
* Added morph rules, infixes and suffixes to __init__.py for swedish
* Added some tests for prefixes, infixes and suffixes
* Added tests for lemma
* Renamed files to follow convention
* [sv] Removed ambigious abbreviations
* Added more tests for tokenizer exceptions
* Added test for problem with punctuation in issue #2578
* Contributor agreement
* Removed faulty lemmatization of 'jag' ('I') as it was lemmatized to 'jaga' ('hunt')