Merge from energyplus branch.
Add tag for EnergyPlus 8.1.0.009.
Update to EnergyPlus 8.1.0.009.
Update to EnergyPlus v. 8.1.
Add tag for EnergyPlus 8.1.0.008.
Update to EnergyPlus 8.1.0.008.
Update to EnergyPlus v. 8.0.0.008
Add tag for EnergyPlus 8.0.0.008.