Minor bug fixes and updates

Hey everybody!
A couple of bug fixes:
1) Salvage gives you at least 1 material.
2) After the reboot Veterinary doesn’t freeze anymore.
3) A Crafter of 6 lvl repairs items with no chance to break them.
4) The opportunity (chance) to improve items while fixing them is removed from the game.
Enjoy the game with Zuluhotel!