Update changelog.html
Using the JQL query below, I've identified a number of JIRA issues that had been closed in the past, but were not marked as 'fixed'. I've now marked those issues as resolved, and have included a reference to each of them in the changelog.
`project = "OF" AND development[pullrequests].open = 0 AND development[pullrequests].all > 0 AND status = open`