M302de: bypass show_entrance()
M302de: BC: borlandify show_citizen()
M302de: BC: change return type of hero counters
M302de: BC: bypass GRP_switch_to_next()
M302de: bypass GRP_swap_heros()
M302de: remove some unneeded volatile keywords
M302de: silence some MSVC warnings
M302de: seg075 cleanup and MSVC warning removal