Note: In a previous commit, I began making inc/mod/auth.php more modular with the check_login() function. Including it does NOT check mod login by default anymore like it does on vichan. You have to call check_login(). I've finally included it in inc/functions.php. If you have any custom pages that use inc/mod/auth.php, just including functions.php is enough now.

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Also: backports 351375185e5 (early 404)

also fixes issue where the Staff is not shown in ban appeals.

This reverts commit d81a6c49e2.

Conflicts:
	js/download-original.js
	templates/post/fileinfo.html

Conflicts:
	templates/post/fileinfo.html

This reverts commit db3c7f4ee9.

This reverts commit 2488e77e86.

maintained. this is an old cruft and if needed, it needs rewriting.