title: MVC 5 - Roles - IsUserInRole and Adding user to role
body: <p>In MVC4 i used Roles.IsUserInRole to check if a given user is in some role. However, with MVC5 i can't do it anymore...</p>
  
  <p>At first, it asked me to enable RoleManager at the web.config but then i discovered that microsoft moved away from Web.Security to Microsoft.AspNet.Identity.</p>
  
  <p>My question now is, with Microsoft.AspNet.Identity how do i do an action similar to Roles.IsUserInRole?
  And/or create a relation between the Role and the User.</p>
  
  <p>By the way, i'm still trying to understand the new authentication methods (ClaimsIdentity?).</p>