noosfero | add patch methods to prepare callback (#845)

[Leandro Nunes]

New Merge Request #845

https://gitlab.com/noosfero/noosfero/merge_requests/845

Project:Branches: participa/noosfero:fix_upload_files_on_development_environment to noosfero/noosfero:master
Author:    Leandro Nunes
Assignee:  

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