2019-12-18 Asteroid, Harvester, System Resource Search, Morale Penalty

[Celarious]

Good job on the asteroid fixes! Would've been pretty scary being next to one and not being able to attack it in any way

Edit: 

City Report Population
Report +/- numbers for population changes.

Population section of city report now shows + and - numbers next to those things that changed the population.

Just wanted to say this is also amazing! Always wanted something like this in the old cities where only morale would be shown as affecting pop