Revert "Hopefully fixed the Cavehornet translucent wings."

This reverts commit b2a77f43adb134476fa3449883cc44344c85f357.
Reduced the creatures' heal rate to be 0.02 per turn instead of an average of 0.1.
Added spawn conditions to BigKnight equivalent to the PitDemon.

I also took the opportunity to ask for a crypt there.
Merge pull request #329 from Bertram25/development

And even more quick-fixes :)