Fix adding a threadmark to a post which had deleted a threadmark with a different position could result in the threadmark's next/previous links failing
Fix changing a threadmark category could result in broken next/previous links
Adjust phrases used on the threadmark index
Add 'scroll' icon to 'read all threadmarks' link
When adding a threadmark, show the content date for the previous/next threadmarks as applicable
Fix "Recent threadmark alignment:left" did not correctly apply on very narrow devices
Add "Threadmarks - show additional thread links" style property (default disabled).
Controls showing last post/latest unread/ignore thread links to threadmark page. Works with older versions of Extened Ignore, but really recommend v1.4.1+ for the best styling
Add "Threadmarks - show tags" style property (default disabled) to show content tags on the threadmarks page
On threadmarks page, add "watch" button for content which supports it (ie threads) and show tags if the content has tags.