fix(audit): log many-to-many collection changes on registration entities - #669

fix(audit): log many-to-many collection changes on registration entities#669

romanetar wants to merge 4 commits into

fix/audit-m2m-cfp-typesOpenStackweb/summit-api:fix/audit-m2m-cfp-typesfrom

fix/audit-m2m-registrationOpenStackweb/summit-api:fix/audit-m2m-registrationCopy head branch name to clipboard