v1.1d: HP growth bugfix + de version fixes

We Fixed a critical bug, that would lead to characters
gaining more HP than usual on a level-up!

If you are below level 10, you are unaffected by this change.

If you are above level 10, some of you characters might have a bit lower HP now.
If your HP was lowered, we put one Vigor Source item into your inventory as a small compensation.

Why did you lower my HP?
If left as is, this would have seriously impacted game balance.
The game, especially later on, would then be no challenge at all.