example files 1a 1b 1c 1d  and custom pyhton node fixed
Merge remote-tracking branch 'origin/master'

Conflicts:

	exampleFiles/EnergyAnalysisForDynamo_ex1b_CreateEnergyModelAndSetSurfaceParams.dyn

	exampleFiles/EnergyAnalysisForDynamo_ex1c_CreateEnergyModelAndSetZoneParams.dyn