Added powerarmortype field to default Lazaus DLL. This changes the savegame version.
Added support for blood_type value of 4 to default Lazaurus, missionpack, and Zaero DLLs.
Added support for Lazarus initially dead monsters (health < 0) to missionpack DLL.
Added support for Lazarus monsterjump cvar (berserk, gunner, infantry, mutant, parasite) to missionpack DLL.
Cleaned up surface rendering code from mpolyvertex_t refactoring.