Merge pull request #153 from MindscapeHQ/is/update-setuser-comment

Update SetUser method summary

src/Raygun4php/RaygunClient.php

@@ -176,11 +176,15 @@ public function setUserIdentifier(RaygunIdentifier $identifier)
     /**
      * Stores the current user of the calling application. This will be added to any messages sent
      * by this provider. It is used in the dashboard to provide unique user tracking.
-     * If it is an email address, the user's Gravatar can be displayed. This method is optional,
-     * if it is not used a random identifier will be assigned to the current user.
      *
-     * @param string $user A username, email address or other identifier for the current user
-     *                     of the calling application.
+     * @param string|int $user        String or numeric type, identifier for the current user, a username,
+     *                                email address or other unique identifier, if not supplied user is set to anonymous
+     *                                and a unique identifier is generated
+     * @param string     $firstName
+     * @param string     $fullName
+     * @param string     $email
+     * @param boolean    $isAnonymous Indicates whether the user is anonymous or not
+     * @param string     $uuid        Optional device identifier
      */
     public function SetUser(
         $user = null,