Merge pull request #10 from Wisembly/change-azure-nickname-path

use userPrincipalName for nickname

Author: krichprollsch

OAuth/ResourceOwner/AzureV2ResourceOwner.php

@@ -31,7 +31,7 @@ class AzureV2ResourceOwner extends GenericOAuth2ResourceOwner
     protected $paths = array(
         'identifier'    => 'id',
         'email'         => 'mail',
-        'nickname'      => 'mail',
+        'nickname'      => 'userPrincipalName',
         'realname'      => 'displayName',
         'firstName'     => 'givenName',
         'lastName'      => 'surname'