Retrofitting Identity to existing ASP.MVC app

☐ Do th is: http://stackoverflow.com/a/31963828
☐ And have a look at this: https://www.nuget.org/packages/Microsoft.AspNet.Identity.Samples
☐ Helpful: http://jorgeramon.me/2015/how-to-seed-users-and-roles-in-an-asp-net-mvc-application/