noosfero | Abstract core to use standard and replaceable helpers (#426)

[Bráulio Bhavamitra]

New Merge Request #426

https://gitlab.com/noosfero/noosfero/merge_requests/426

Project:Branches: brauliobo/noosfero:use-more-helpers to noosfero/noosfero:master
Author:   Bráulio Bhavamitra
Asignee:  

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