- Fixed issues reported by Sonar.
Reorganized stopwords; removed catching of NullPointerException
Merge pull request #140 from acz-icm/master

Reorganized stopwords; removed catching of NullPointerException
Removed deprecation warnings.
- Fixed issues reported by Sonar.
- Refactoring.
- Fixed issues reported by Sonar.
- Refactoring.
- Fixed issues reported by Sonar.
- Refactoring.
- Fixed issues reported by Sonar.
Merge branch 'master' of git://github.com/CeON/CoAnSys

Conflicts:
	disambiguation-author/src/main/java/pl/edu/icm/coansys/disambiguation/author/pig/AproximateAND.java
Language filter added to extractors.