Well it has
Images, a js file, a bunch of phrases, and some php edits and template edits.
Instructions from the dev.
2) Copy file php/install.php to root XenForo directory and open it in the web browser.
If the installation was successful under permission settings you will see a new option:
"Limit / unlimit thread discussion time".
3) Copy following files/directories to directories of the root XenForo directory:
images/clock.png -> /styles/default/xenforo/icons
js/timed_threads_extension -> /js
php/ControllerPublic/* -> /library/XenForo/ControllerPublic
php/DataWriter/* -> /library/XenForo/DataWriter
php/Model/* -> /library/XenForo/Model
4) In the administration panel go to Appearance->Templates and replace
the contents of these templates with contents of files:
templates/discussion_list_css.txt -> discussion_list.css
templates/thread_view_css.txt -> thread_view.css
templates/thread_view.txt -> thread_view
templates/thread_list_item.txt -> thread_list_item
templates/thread_fields_status.txt -> thread_fields_status
5) In order to provide the ability to create time-limited discussions,
you must assign permissions: "Lock / unlock threads" and "Limit / unlimit thread discussion time".