Indev 0.1.1

Indev 0.1.1

Additions:
+ Added a new item: Ring of Area
+ Added a new item: Ring of Piercing

Changes:
- Levelling up no longer gives you weapon upgrades, but increases your health and damage by a flat amount
- Weapons are obtained from weapon shrines, which a total of 3 can spawn in a run.
- The amount of enemies in a stage is not dependant on time time spent in the stage, but instead the difficulty level
- Balance changes to item stats

Fixes:
* Fixed a bug where you could stand on top of the monument and enemies couldn't reach you
* Fixed kills and most damage dealt not showing the correct number on the results screen
* Fixed a bug where you levelled up more than you should've sometimes