ACF2: Fix Lua error spam when Leaks A Lot died in same turn as weaklings, also do other minor tweaks - Grant skip to Dense Cloud and Leaks A Lot again, after refusing the cyborg's offer - Fix flow chart - String freeze is maintained, the new string is already in stub.lua.

void fpcrtl_halt(int num) {
    __coverity_panic__();
}

int fpcrtl_abs(int num) {
    return num >= 0 ? num : -num;
}