Split the time assignment into a new file NightTime.lua allowing for it to be disabled. (Restore normal day/night cycle)
Also added a popup when a player places a solar panel informing that they are purely cosmetic
Removed the recipe for portable solar panels because they are useless, but the technology is needed.
Increased evolution_factor by 50%. (0.0000008 -> 0.0000012)
Increased pollution_factor by 100% (0.00002 -> 0.00004)
Created on_init() in AlienSpawner and moved the pollution_factor here from StartingZone.on_init()
Fixes#281