Nunjucks 4 in the making

[Ryuno-Ki]

Since I know we have some people living on the bleeding edge:

mozilla/nunjucks#1484 is about picking up maintenance of the Nunjucks template engine.

Keep an eye on https://github.com/nunjucks/nunjucks4

I'm so excited that I want to share it with you.

[dwkns]

I'm really happy about this. I like Nunjucks and don't want to see it dissapear.