Build fails when favicon is missing

Created by: calebmer

I tried deleting the favicon.ico file after creating an app with version 0.2.0 and got this error:

Error: HtmlWebpackPlugin: could not load file favicon.ico

  - index.js:303 
    [000]/[react-scripts]/[html-webpack-plugin]/index.js:303:27

(omitted stack trace for brevity)