Configuring the hibernate persistence strategy to not limit the characters from varchar

	modified:   src/main/java/br/ufrn/dimap/pubnote/dao/EvaluationDAO.java
	modified:   src/main/java/br/ufrn/dimap/pubnote/domain/ArticleEntity.java
	modified:   src/main/java/br/ufrn/dimap/pubnote/domain/EvaluationEntity.java
	new file:   src/main/java/br/ufrn/dimap/pubnote/hibernate/PubnotesPostgreSQLDialect.java
	modified:   src/main/resources/hibernate.cfg.xml
Merge pull request #21 from danielalencar/master

"character varying" for varchar