Disambiguation author module.

1. Pig reporters added to UDFs, mainly in order to reporting information about features in documents. Usage of existed pig reporters have changed to avoid time overhead.
2. Refactoring, cosmetic changes, unused and deprecated code removed.
3. Bugfixes in extractors.
4. Diacritic Remover normalizer added. Normalize strategy of extracted data changed.
5. Add new nodes in workflow for cleaning auxiliary seq files, produced during calculations.
6. Fixed most issues reported by Sonar.
7. Parsing arguments in udf (EXTRACT_CONTRIBDATA_GIVENDATA) using JCommander.
8. Remove unnecessery duplicated authors checking in above udf.
9. Do not process documents without authors.
10. pom.xml
11. Unit tests fixed. ExhaustiveAND test added.
12. Reduction of exhaustive_limit to 5000.
13. New testing model with more features.