Merge branch 'stable-2.9'

* stable-2.9:
  Review UI docs: Add screenshot of side-by-side diff with renamed file
  Review UI docs: Move sentence about download icon to right place
  Apache/mod_jk/web server: Describe ForwardURICompatUnparsed option

Change-Id: I15f752c80bc45f368e4dde4e6d31758c530fa0ce