Merge pull request #3 from arnoutaertgeerts/DistrictHeating

New substation partial for multiple connections + updating network interface
Merge pull request #4 from arnoutaertgeerts/DistrictHeating

New pipe model with temperature plug flow
Merge pull request #5 from arnoutaertgeerts/DistrictHeating

Start of the generic boiler model and replacement of the pipe models
Changes to Example to make it a little more user friendly
Merge branch 'DistrictHeating' of https://github.com/GlennReynders/IDEAS into DistrictHeating

Conflicts:
	IDEAS/DistrictHeating/Example.mo
	IDEAS/DistrictHeating/Substations/Control/SupplyTControl.mo
	IDEAS/DistrictHeating/Substations/SingleHeatExchanger.mo
Merge pull request #6 from arnoutaertgeerts/DistrictHeating

Finished generic production model
Some vectors were defined as Real name[size] in stead of Real[size] name
Solving this + adapting the sizes of the arrays by using eg. [nmodulation, : ,:] instead of [nmodulations] seems to help.
Created GenericModulatingProduction model to prevent tampering with the working model