1. Fix for Jason's House getting locked
If you were unable seeing locked doors after finding Jason's House during Halloween quest - this will fix it.
2. Fix for players unable to meet Mia
If you were unable to meet Mia this fix should make it work again.
3. Huge fix for prerequisites
While adding halloween quest I had to change couple things in a very delicate parts of the system, and it seems this created a whole variety of problems in different parts of the game. This hopefully fixes them.