Fix error on merging or hard deleting threads
Edit history support Banners can now be deactivated/activated without needing to edit the banner text Rewritten to using DataWriters
Add-on integration support Allows add-ons to easily hook the reply banner to add replacables
Add-on compatibility update. Move inline css to CSS template. Ensure installer rebuilds permissions correctly.
Correct typo which prevented threads being hard-deleted or merged.