Add Character Cache - now characters data are loading to cache, where can be modified without player required. Also improve player loading speed, and allow to easier changing in character data.

Add new data co config file (backup path, mach cached characters data in memory and convert player data in next startup)

Improve character data structure - now data don't contains unnecessary elements and are better compressed.

Improve items data management. Now even after adding new spells, runes or items, there won't be any issue with players items.

Improve Account data structure - now is lighter and is loading faster.

Improve checking server data patch.

Improve help command. Now help is also displayed when type "?"

Update Spigot engine