Implementação da nova API de notificações baseada em pontos de verificação
merge
Including volume supplement and number supplement to make part of issue identification (#85)
Merge branch 'master' of git://github.com/scieloorg/balaio into 85
Merge branch 'master' into tk78
Tests of parse_issue_tag
Merge branch 'master' of git://github.com/scieloorg/balaio into 85
Fixes #96. Adicionado enum para representar os status das notificações
Including supplement to issue identification (Issue #85)

1. Included supplement of volume and number to ArticlePkg
2. Included supplement of volume and number to ArticlePkgStub
3. Included supplement in SPSMixin.meta, which uses new functions created in utils module.
4. Included supplement of volume and number in the filter of scieloapi.issues to use in SetupPipe
5. Tests
Adicionado o parametro posicional `status` no método Checkpoint.tell
Adicionado o parametro posicional `status` no método Checkpoint.tell
Merge pull request #83 from gustavofonseca/tk78

Tk78 - Implementação da nova API de notificações
Merge pull request #101 from robertatakenaka/85

Issue #85 - considerar suplementos na identificação do fascículo