Optimize Code + Fix some bugs + Update InSigns

+ Added external file for all messages
+ Added external file for the special characters

- Removed some duplicate characters

* Clean up many parts of code
* Change misleading config
* Set temporal scoreboard and pvp stats as default to false, because many people don't actually want it
* Let the Updater be on every build up to date
* Fix spelling mistake
* Update InSigns
* Fix a bug where some names won't be colored