Minimal Raider v1.4 with climbing fix!

Hey all! It took some doing, but it looks like the climbing bug is fixed! Everyone should be able to proceed unimpeded into the tomb now. Please test it out if you encountered this problem before, and let me know if it worked for you (or didn't).

This was my last major eyesore so I'm glad it's fixed. It was very hard to reproduce, but eventually we found a way and moved some code into the FixedUpdate function so it should no longer be affected by low framerates or physics timesteps.

I also linked the quality setting of the game launcher to the quality setting in the pause menu so those can no longer be out of sync. And finally I tweaked the white material on the environment to be slightly darker so it's easier to see the edges.

Thanks for playing!