1.0.1.4

Added an inventory system I learned to make from GameDev.tv. I had already implemented it but removed it for the demo and didn't work on it for a while. Now I got around to doing that and make it feel right inside the game since it had just been a prototype. 

I also added:

• SFX when interacting with inventory and its items.
• Visual feedback for when you're on top of an item you can pick up.