noosfero | blocks: make sure limit is integer on get_limit (#558)

[Daniela Feitosa]

New Merge Request #558

https://gitlab.com/noosfero/noosfero/merge_requests/558

Project:Branches: danielafeitosa/noosfero:block_limit to noosfero/noosfero:master
Author:   Daniela Feitosa
Asignee:  

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