Recognition Core Dev
Merge branch 'master' of https://github.com/davigrangeiro/express-match

Conflicts:
	express-match-service/src/main/java/br/usp/ime/escience/expressmatch/service/expressions/ExpressionServiceProvider.java
	express-match-service/src/main/java/br/usp/ime/escience/expressmatch/service/match/evaluate/ExpressionMatchServiceProvider.java
	express-match-service/src/main/java/br/usp/ime/escience/expressmatch/service/symbol/classifier/SymbolClassifierResponse.java