Version 2.1.3 : Cosmetic changes & checkmarks fallback

Interface : Expanded criteria for net points.
Interface : Added message in career menu that explains how to use a custom character.
Cosmetics : Added replay icon during automatic replays and used similar icon for more compact quick-save replay indicator.
Cosmetics : Small cosmetic fixes for rotating ball indicating online invitation.
Online : Added fallback support for checkmarks when server is unavailable.