New SLIC function: KillCity(): Obviously kills population until the city is dead. Less obviously only works in messages, where the city is given from the context.

//EMODs
SFN_ERROR Slic_KillCity::Call(SlicArgList *args)
{
    if (args->Count() > 0)
        return SFN_ERROR_NUM_ARGS;

	Unit city = g_slicEngine->GetContext()->GetCity(0);
	if (!city.IsValid()) 
    {
		return SFN_ERROR_OK;
	}

	if(!city.GetData()->GetCityData()->CapturedThisTurn()) {
		if(g_network.IsClient()) {
			g_network.RequestResync(RESYNC_PROBABLE_CHEATER);
		}
		return SFN_ERROR_OK;
	}

	if(g_network.IsClient()) {
		g_network.SendAction(new NetAction(NET_ACTION_FREE_SLAVES, city.m_id));
	}
	CityData *cd = city.GetData()->GetCityData();
	sint32 PCount = cd->PopCount();
	city.GetData()->GetCityData()->ChangePopulation(-PCount);
	//city.GetData()->GetCityData()->Disband();

    return SFN_ERROR_OK;
}