Inspired by ctemplate, Mustache is a framework-agnostic way to render
logic-free views. As ctemplates says, "It emphasizes separating logic
from presentation: it is impossible to embed application logic in this
template language. Think of Mustache as a replacement for your views.
Instead of views consisting of ERB or HAML with random helpers and
arbitrary logic, your views are broken into two parts: a Ruby class
and an HTML template.