(refs #3330 BP from #3198) remove unnecessary calling sfWebResponce::setContentType() twice in opJsonApiActions
(refs #3330 BP from #3198) remove unnecessary calling sfWebResponce::setContentType() twice in opJsonApiActions

openpne/OpenPNE3,openpne/OpenPNE3,openpne/OpenPNE3,openpne/OpenPNE3