noosfero | fix propagation of function rename list_articles -> list_contents (!1093)

[Rodrigo Souto]

New comment for Merge Request !1093:

https://gitlab.com/noosfero/noosfero/merge_requests/1093#note_21901274


@italovalcy can you please retry the failed tests on the build? There was probably some random error. If you retry it might solve and I'll merge your request.


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