Update 0.5.0.0 "Sorcery"

A "Sorcery" update that brings up spells, new enemies, events, weapons to the game!

- Spells (4);

- Events are now chance based;

- 4 New Events;

- Mana;

- Mana potions;

- 10 New weapons;

- 3 Renamed weapons (Massive sword -> Zweihander, Greatsword -> Claymore, Sword -> Shortsword);

- 3 New enemies;

- STATS is back;

- Displaying fully calculated damage to current enemy;

- Fixed when nothing displayed in enemy stats menu when there is no enemy;

- Correct enemy level saving;