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
Changing True to true and False to false
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
Merge pull request #100 from robertatakenaka/80_doc

Changing True to true and False to false in API documentation of Gateway HTTP
Primeira versão do Gateway HTTP
Corrigido o total de itens.
Adicionado o renderer
Evitando duplicar o limit e o offset.
Adicionado o parametro posicional `status` no método Checkpoint.tell
Adicionado o parametro posicional `status` no método Checkpoint.tell
Changes on database pyramid infraestructure
Merge branch 'gateway_http' of https://github.com/jamilatta/balaio into jamil_gateway_http

Conflicts:
	balaio/models.py
Merge branch 'gateway_http' of https://github.com/jamilatta/balaio into jamil_gateway_http