For Threadmarks support, push word-count into the threadmark entity to remove a number of redundant joins and remove the need to touch the post table in threadmark lists
Requires Threadmarks v2.19.0+ to fully remove the redundant joins
Support Search Improvements v2.7.0+ search term display
Fix v2.8.0 regression which caused thread's total word count not to be updated in the search index
Will require rebuilind the search index for the 'thread' content type