Support for Redirect Code needed

[Routhinator]

Hi folks,

This formula does many wonderful things, however it lacks the ability to control the type of redirect in the redirect.tmpl. Redirect by default uses code 302 (temporary), however in many cases these must be 301 (permanent) redirects; when you're forcing a user from example.com to www.example.com for example.

It would be nice to provide an option like so:

RedirectCode: '301'        # This could also be 'permanent'
RedirectSource: '/'
RedirectTarget: 'http://www.example.net'

And in redirect.tmpl:

Redirect {% if site.get('RedirectCode') %}{{ site.RedirectCode }}{% endif %} {{ vals.RedirectSource }} {{ vals.RedirectTarget }}

Thanks for your hard work.