Unmaintained Threadmarks 1.5.4

• 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/

• Do not special case touch for on-hover events in js
• Rework threadmarks menu to play nicer with touch
• Allow per-thread threadmark category cache to be injected with additional information
• Add statistics block to threadmarks index with option to disable it.

• Fix issue where moving a nested threadmark to a new category results in that thread's threadmark ordering for that category being uneditable.

• Threadmark types, allows categorizing distinct from the main threadmark list.
• Permissions on threadmark categories define who can create a threadmark on a given category.
• Categories are admin defined.
• A post can only have 1 threadmark.

• Improve robustness of installer
• Improve ElasticSearch extension code.

• On quick reply, on a thread with no threadmarks ensure the new threadmark shows up
• Fix compatibility with pre-XF 1.5 versions

• Add threadmarks from quick reply/reply
• Implement require extendability for Word Count support
• Expose threadmark cache rebuild to the rebuild cache page
• Reduce data fetching on threads with no threadmarks
• Fix displaying post user avatar on threadmark preview.
• Update jsTree library

• Use local copy of jstree
• Fix typo in uninstaller
• Fix ElasticSearch/XenForo Enhanced Search detection
• Fix "Click to lock" phrase

• Style properties for theming
• Optional next/previous/index navigation for threadmarked posts.
• Ability to sortable threadmarks from a thread's threadmark index
• Threadmark history, and on hover information for who created it.
• News feed integration
• Expose threadmarks to the search

Many thanks to @Xon for all his great work.