Minor Game Update

v1.1.2490: - overall performances improvements - optimized monster path finding in hack n slash level - streaming of some big levels - upgraded to FP 11.6/AIR 3.8 - optimized light assignement to reduce shader updates in hack level - changed algorithm for point lights in hack level (use normals + multiply) - better looking hero ambient lighting in hack level - use WinXP dinput8.dll (should prevent some pad.exe crashes on XP) - allow heal during bombs quest - heal hero when kaeris leave in aogai - allow talking to merchant while airship is near - fix airship recovery in sacred grove - fix hero-in-a-rock when going back to start level - few typos