Initial index catalog mode work.
Add sticky/closed status icons in the catalog.
Update page/sticky/closed status on index refresh for the catalog.
Update thread post/file count on index refresh in the catalog.
Add filter-highlight to threads on the catalog.
Don't use the IndexBuild event for hiding threads.
Merge branch 'v3' into index
Warn users of the official catalog of the incoming support removal.
Shift+click to hide threads in the catalog.
Alt+click to pin threads in the catalog.
Refactor the catalog thread views business with a class.
Remove quotelinks in threads in the catalog.
Add Image Hover support in the catalog.
Close #836
Catalog changelog.
Add Auto-GIF support in the catalog.
Merge pull request #1405 from MayhemYDG/index

Index navigation improvements - EP04