title: Get a list of groups that Azure AD user belongs to in claims
body: <p>I am authenticating users of my web api against Azure Active Directory.
  Now I want to get a list of groups that this user belongs. </p>
  
  <p>I changed application manifest to include   </p>
  
  <pre><code>"groupMembershipClaims": "All",
  </code></pre>
  
  <p>but all this does is to add claim hasGroups but no group names.</p>
  
  <p>I granted all (8) Delegated Permissions to Windows Azure Active Directory for my app in the portal.</p>