Split analytics into a separate function

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
Factor out the page wrapping code

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
Allow rebinding the root URL

This is so that we can reuse the same code that generates the header, by
rebinding a global Var to a different value.

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
Add information about EoL dates

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>