noosfero | Fixes compatibility in newsletter plugin with CSV exported by Excel (#683)

[Antonio Terceiro]

Merge Request #683 was merged
Merge Request Url: https://gitlab.com/noosfero/noosfero/merge_requests/683
Project:Branches: larissa/noosfero:newsletter-emails-import to noosfero/noosfero:master
Author: Larissa Reis
Assignee: Daniela Feitosa
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