Inserting filter to Attempts, ArticlePkg, Tickets and Validations (Issue #113)
Merge branch 'master' of git://github.com/scieloorg/balaio into 113

Conflicts:
	balaio/gateway_server.py
	balaio/models.py
Adjustments according to the revision
Merge pull request #117 from robertatakenaka/113

Inserting filter to Attempts, ArticlePkg, Tickets  (Issue #113)