Does not handle favicons

[xiamaz]

Currently favicon.ico are not handled at all by rules, causing websites using these to fail to build.
Adding a simple rule fixes the issue, such as:

      }, {
        test: /favicon\.ico$/,
        loader:'file-loader?name=img/[path][name].[ext]&context=./app/images'
      }, {

Although I am just starting to use webpack, so I am not sure whether my setup is simply misconfigured.