Fixed a bug that caused a NullReferenceException when a building had no buildingAI.

Changed population modifier for low Density Commercial level 1 from 30 back to 50
Changed population modifier for low Density Commercial level 2 from 60 back to 75

Added Source code.

Population Changes:

Changed population modifier for Low Densitiy Residential Level 3 from 30 to 25
Changed population modifier for Low Densitiy Residential Level 4 from 35 to 20
Changed population modifier for Low Densitiy Residential Level 5 from 40 to 15
Changed population modifier for High Densitiy Residential Level 1 from 60 to 120
Changed population modifier for High Densitiy Residential Level 2 from 100 to 200
Changed population modifier for High Densitiy Residential Level 3 from 130 to 300
Changed population modifier for High Densitiy Residential Level 4 from 150 to 500
Changed population modifier for High Densitiy Residential Level 5 from 160 to 640
Changed population modifier for Low Density Commercial Level 1 from 50 to 30
Changed population modifier for Low Density Commercial Level 2 from 75 to 60
Changed population modifier for Low Density Commercial Level 3 from 100 to 120
Changed population modifier for High Density Commercial Level 1 from 75 to 120
Changed population modifier for High Density Commercial Level 1 from 100 to 250
Changed population modifier for High Density Commercial Level 1 from 125 to 500
Changed population modifier for Offices Level 1 from 50 to 200
Changed population modifier for Offices Level 2 from 110 to 550
Changed population modifier for Offices Level 3 from 170 to 1200
Changed population modifier for Industry Level 2 from 150 to 200
Changed population modifier for Industry Level 3 from 200 to 300
Changed population modifier for Farms from 100 to 25
Changed population modifier for Forestry from 50 to 100

Balance Changes:

Changed electricityConsumption for Low Densitiy Residential Level 1 from 60 to 50
Changed electricityConsumption for Low Densitiy Residential Level 2 from 60 to 55
Changed electricityConsumption for Low Densitiy Residential Level 3 from 60 to 60
Changed electricityConsumption for Low Densitiy Residential Level 4 from 60 to 65
Changed electricityConsumption for Low Densitiy Residential Level 5 from 60 to 70
Changed electricityConsumption for High Densitiy Residential Level 2 from 28 to 32
Changed electricityConsumption for High Densitiy Residential Level 3 from 26 to 34
Changed electricityConsumption for High Densitiy Residential Level 4 from 24 to 36
Changed electricityConsumption for High Densitiy Residential Level 5 from 22 to 38
Changed garbageAccumulation for Low Densitiy Residential Level 1 from 100 to 50
Changed garbageAccumulation for Low Densitiy Residential Level 2 from 100 to 45
Changed garbageAccumulation for Low Densitiy Residential Level 3 from 60 to 40
Changed garbageAccumulation for Low Densitiy Residential Level 4 from 40 to 35
Changed garbageAccumulation for High Densitiy Residential Level 1 from 70 to 40
Changed garbageAccumulation for High Densitiy Residential Level 2 from 70 to 35
Changed garbageAccumulation for High Densitiy Residential Level 3 from 40 to 30
Changed garbageAccumulation for High Densitiy Residential Level 4 from 30 to 25
Changed waterConsumption for Low Densitiy Residential Level 1 from 120 to 80
Changed waterConsumption for Low Densitiy Residential Level 2 from 110 to 75
Changed waterConsumption for Low Densitiy Residential Level 3 from 100 to 70
Changed waterConsumption for Low Densitiy Residential Level 4 from 90 to 65
Changed waterConsumption for Low Densitiy Residential Level 5 from 80 to 60
Changed incomeAccumulation for Low Densitiy Residential Level 2 from 160 to 140
Changed incomeAccumulation for Low Densitiy Residential Level 3 from 240 to 180
Changed incomeAccumulation for Low Densitiy Residential Level 4 from 360 to 240
Changed incomeAccumulation for Low Densitiy Residential Level 5 from 450 to 360
Changed incomeAccumulation for High Densitiy Residential Level 1 from 70 to 80
Changed incomeAccumulation for High Densitiy Residential Level 3 from 130 to 120
Changed incomeAccumulation for High Densitiy Residential Level 4 from 160 to 140
Changed incomeAccumulation for High Densitiy Residential Level 5 from 200 to 180
Changed incomeAccumulation for Offices Level 2 from 200 to 160
Changed incomeAccumulation for Offices Level 3 from 300 to 180
Changed garbageAccumulation for Offices Level 2 from 50 to 75
Changed garbageAccumulation for Offices Level 3 from 25 to 50
Changed incomeAccumulation for Industry Level 1 from 200 to 240
Changed incomeAccumulation for Industry Level 2 from 240 to 300