Merge branch 'master' of git://github.com/scieloorg/balaio into 24

Conflicts:
	balaio/validator.py
Merge pull request #51 from robertatakenaka/24

Funding-group validation (issue #24)
Merge branch 'master' of git://github.com/scieloorg/balaio into 15

Conflicts:
	balaio/validator.py
NLM Journal title validation (Issue #15)