Both Progress and Authority have happiness policies that are related to city population. For Progress, its 1 happiness per 10 citizens in the city. For Authority, they get 1 happiness if there is a garrison in the city but Authority also has a policy to give a free, supply-free, unit that is used as the garrison for happiness. With the current state of population growth, the 10 population requirement feels a litle high. I think it was 8 previously at one point? Thoughts?