Main configuration file needs rework

[Flo56958]

The main configuration file has a lot of options that are not really well structured and all over the place. It needs clear and precise Categories and options (not just through comments). Many options have similar or same meaning or get used in exactly the same places in code. These options need to be identified and combined.

Many options have a category but are not labeled as such and therefore do not get sorted by Bukkit.

The config file should be easy to manage and to read. Not the mess it is currently.

• [ ] Find and delete similar or duplicate config options
• [ ] Combine options that belong together in a own category (if not already)
• [ ] Refactor Option-Names for better readability