title: Adding Role dynamically in new VS 2013 Identity UserManager
body: <p>I created a new MVC application in the new VS2013 IDE. I added the following to the Login Action on the AccountController as I wanted to create a default user dynamically:</p>
  
  <pre><code>var admin = new ApplicationUser() { UserName = "administrator" };
  var result = UserManager.Create(admin, "administrator");
  </code></pre>
  
  <p>This works great, I then wanted to put this default user into a new default role:</p>
  
  <pre><code>user = UserManager.FindByName("administrator");
  var roleresult = UserManager.AddToRole(user.Id,"admin");
  </code></pre>
  
  <p>The second line errors because obviously it can't find the role "admin" as it doesn't exist yet, but I can't find a relevant method on the UserManager to do so.  Where can I find the method to add roles dynamically?</p>