clean code, next bug fixing

	modified:   disambiguation-author/src/main/java/pl/edu/icm/coansys/disambiguation/author/pig/ExhaustiveAND.java
	modified:   disambiguation-author/src/main/java/pl/edu/icm/coansys/disambiguation/author/pig/PigDisambiguator.java
	modified:   disambiguation-author/src/test/resources/data.in