output writer

[mattn]

I hope that mustache.go take an argument for output writer.
Maybe, it will be helpful for web.go

web.Get("/", func(ctx *web.Context) {
  data := GetData()
  tmpl.RenderFile("foobar.mustache", data, ctx)
})

[abh]

It'd have to be a different function, maybe FRender(...) ? It doesn't seem like it'd save that much typing though.

[hoisie]

This is a great idea, and it's more consistent with the Go conventions. There are a couple PR that address this, so it should be in shortly.