Maybe fix for grind going through the ground, also some optimasations
Merge branch 'master' of https://github.com/Raful/Hoverboard into Erik

Conflicts:
	Hoverboard/Assets/Script/Misc/GlobalFuncVari.cs
Update GlobalFuncVari.cs
Boost Particles
Merge branch 'master' of https://github.com/Raful/Hoverboard into Niklasnew