Retro Racers Pack 5.4

Hello everybody!

V2.0 is here with a new name and a new map! And also a few fixes...

New Content:

- A few fixes for Needy Madness
- A whole new map: Four Leaf Cleaver. An Hotwheels inspired race map which is sure to bring nostalgia and tons of chaos.

Ok, thanks to Triblue, Diggle and Mizu, I've fixed a whole lot of unwanted shortcuts.

Fixes:

- A whole lot of unwanted shortcuts fixed.

Just did a quick fix on that map.

Fixes:

-Removed two possible unwanted map-breaking shortcuts. Thanks to Triblue for finding these.