This version adds support for tags (introduced with XenForo 1.5), link forums and categories.
This version fixes an issue where attachment thumbnail redirects only worked if IDs were retained.
Thanks to @Ralle for the report.
Fix a regression in 7.0 that broke thread redirects.
I think this code has been sitting around for a while. There are a couple compatibility fixes and support for redirecting specific pages via the INCLUDE_PAGE_LINKS define that is discussed in the updated 301config.php file.