fix bug 938552 - Prevent too much spacing at the bottom of overheadIndicator boxes
fix bug 938542 - Ensure proper color text in warning boxes
fix bug 940440 - Remove DevTools from dropdown
fix bug 936699 - Adding translation boxes to documents
fix bug 940918 - Avoid flash of content in TOC, quick links
fix bug 940978 - Ellipsize quick links
bug 773522: Model fields to support concepts of max age and expiration for document rendering
bug 773522: Model method to render stale documents, either immediately or via delayed queue task
bug 773522: Account for one-shot render_expires without render_max_age for updates