Conjury v0.4.0

Hey all, just another quick update. This is one is mainly just bug fixes, balancing and some new content.

The most noticeable new change will be the character select screen. This is mainly just a cosmetic addition for now, but in the future I'll be looking to add different gameplay aspects for each character.

Updates:

- UI updates to the altar screen to make it more clear what upgrade your weapon has received
- 4 new weapons
- 1 new item
- 4 new spells
- Fixed the mole crashing the game
- Balance update to make the difficulty curve more gradual