Unmaintained Threadmarks Pro 1.7.5

• Fix off-by-1 error resulting in threadmark list of 2 not displaying both items
• Fix injecting work-count and like count into rss feed

• Backport Threadmark list range-loading from XF2, this allows only a limited amount of threadmarks to be rendered rather than all
• When a thread is hard deleted remove orphaned threadmarks

• Fix threadmark index ordering (restore ascending ordering)

• Threadmark Rss feed is now sorted by most recent to oldest and now has a configurable fetch limit (default 10)

• Restore creating the threadmarks_read table for new installs

• When the "No index reader mode pages" option is set, only apply noindex meta tag to reader mode views, not all threads.

• Add no-index option for reader mode (default enabled)
• Tweak indexes on threadmark tables

• Respect thread locked state when adding/editing/deleting threadmarks
• Surface some threadmark info as data attributes on threadmark index

• Include Like count when fetching threadmarks, useful for theming on a thread's index page.
• Elasticsearch v6 single-type support is complex so move it into https://xenforo.com/community/resources/enhanced-search-improvements.4762/

• Cache phrase names for threadmark categories, and avoid ~2 queries with threads with threadmarks