AgileVentures/osra — pull request #188 by NikitaAvvakumov (2014-12-02 10:59:34+00:00)
Title: Fix bug in sponsored_minor_siblings_count validator

https://osraav.atlassian.net/browse/OSRA-271

`sponsored_minor_siblings_count` is an optional attribute, and the validator breaks when it is not specified