Compatibility update for Confluence 8.5.7 - 8.5.*, 8.8, and 8.9

Note: This release is in response to the security vulnerability update from Atlassian found here. Atlassian has strongly advised that customers update to 8.5.7 or later. As such the changes in this release were built around versions 8.5.7 and later and will not work on previous versions.