Voxelaxy update 2

Hello Astronauts!

In this update I've


added:
+ New mob scarlet!
+ New LED sword Blue
+ New LED sword White

fixed:
- bug with no death after 0 hp
- bug with spam notifications about the destroyed drill or low battery.

Optimization:
I upgraded the game to Unity 2017.2, so you should have got more FPS!!! :)