noosfero | Avoid bots crashes with invalid params (#419)

[Bráulio Bhavamitra]

New Merge Request #419

https://gitlab.com/noosfero/noosfero/merge_requests/419

Project:Branches: brauliobo/noosfero:cms-404-on-invalid-params to noosfero/noosfero:master
Author:   Bráulio Bhavamitra
Asignee:  

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