Fixed bug with fall damage

If you change the height after overheat, you get damage like you didn't change it at all. For example: overheat when you are 10 meters above the ground, and you fall to place 20 meters deeper, but you get the damage like you fell from 10 meters instead of 30. This commit fix this.
Merge remote-tracking branch 'origin/dev' into dev-ui
Fixed displaying of UTF-8 characters