* new system for handling objects and their behaviors, most functionalities don't work now but will be restored soon
* more serialization code, savegame/loadgame bit closer :)
CHANGES IN PROJECT FILES:
* removed CLua.h and CLua.cpp (server)
* removed CScriptCallback.h and CScriptCallback.cpp (server)
* added IGameCallback.h header (lib)
* if hero doesn't have a spell book, he can buy one in a mage guild
* improvements in closing
* fixed crash on picking artifact
* added event message when picking artifact
* fixed problems with disappearing pikemen
* InfoWindow will be properly centered
* hero portraits again visible in PreGame
* fixed problems with handling Pandora's Box
* support for Campfires
* minor changes