(#58) portal, json: fixed copyright headers
(#58) portal, json: fixed copyright headers: changelog
Merge branch 'feature-0.12.x/58-fix-copyright-headers' into release-0.12.x

* feature-0.12.x/58-fix-copyright-headers:
  (#58) portal, json: fixed copyright headers: changelog
  (#58) portal, json: fixed copyright headers