Allow get, post, etc, to accept a module + function

[lpil]

defmodule App do
  use Clint
  get  "/users",     App.UsersController, :index
  get  "/users/:id", App.UsersController, :show
  post "/users",     App.UsersController, :create
end

OR

defmodule App do
  use Clint
  get  "/users",     &App.UsersController.index/1
  get  "/users/:id", &App.UsersController.show/1
  post "/users",     &App.UsersController.create/1
end

Or both?

[lpil]

I think this may require us writing our own router, rather than using the plug one. Rather annoying.