My client requested that PostRelease's script be installed on one of their sites. The recommended location for the PostRelease script is right before the closing HEAD tag. What is the best way to incorporate this script into XenForo in a way that will not be overwritten in the future? Also, PostRelease requires that a template page be created with no content between the HTML tags. What is the recommended way to do this? Is it using the Page feature? Thank you!