Calcabrina now spawns and re-spawns. Added mob family - Calcabrina can only use berserk.

*** This pull request can be updated without closing and opening a new one, I can update the last commit to the branch and github automatically changes the content in the pull request. ***

I have been unable to get the additional effect drain to function without error, additional work (that I do not know how to do) is needed. Kj said he'd take a look later.