[Client] Improved performance of short range warps
[Engine] Fixed annotations
[Client] Improved background music playback during warps
[Client] Removed some old debug messages
[Engine] Removed old base level variable from light tracer
[Client] Don't limit light calculation to base level
[Client] Apply mapgroups to all map layers
[Client] Refresh graph in case a short warp is performed
[MapEditor] Ensured consistent usage of the common tile information class
[Client] Removed old and useless code
[Client] Fixed illegal comparable implementation
[MapEditor] Fixed incomplete equal implementations
[Common] Fixed incomplete equals implementation
[Engine-Slick] Fixed comparator for display modes
[Engine] Fixed graphics resolution implementation
[easyNPC] Resolved potential stream writing problem
[Client] Added missing break
[Nifty-Controls] Show and hide merchant overlays properly
[Common] Fixed skill loading problem

The skill loading problem caused ConcurrentModificationException during the launch of the client.
[Client] Fixed updates of the character list after changing the login