Fix menu bar on changelog-page

Some items on the menubar went missing when the changelog was
updated. This fixes that

Signed-off-by: Erik de Castro Lopo <erikd@mega-nerd.com>
Update API and tools documentation

Copied API documentation from the latest tarball, and migrated all
documentation changes to the website

Signed-off-by: Erik de Castro Lopo <erikd@mega-nerd.com>
Update news feed

Signed-off-by: Erik de Castro Lopo <erikd@mega-nerd.com>