Demo 3 & Demo 3.1

Another version! This is Demo 3, here are the changes:

Additions

- Added Block Outlines 

- Added Coordinates 

Changes

- Changed Splash to "Demo 3!"

Fixes 

- player glitching through blocks at high velocity 

- inventory gets saved while new world 

- Auto Jump, Show Coordinates and Block Outlines don't work

- the player will go on top of the block if jumping if the block is one block above the player

Here's Demo 3.1, a hotfix

Changes

- Changed Splash back to "Demo!"

Fixes

- Fixed the viewport being to large and the instructions missing