Pratmo++ Issues:
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2015-06-30: Good for Aerosols Heterogeneous chemistry but bad in or radiative transfer
            Aerosols must be non-zero for the heterogeneous chemisrtyu to work properly. Unfortunately the same aerosols are used in the radiative transfer where they skew the transfer calculation.
            The current fix is leave aerosols enabled for the heterogeneous chemistry but explicitly set aerosols to zero on line 183 of skphotochemical_jvalue.cpp inside function
            skPratmoTable_SolarFlux::CalculateVerticalOpticalDepthOfLayers. WE really need two sets of aerosol: one set of aerosols for the heterogeneous chemistry and another set of aerosols for the radiative transfer
            
2015-06-30: Matlab crashes upon exit if SasktranIF and Pratmo Bpox model resources not explicitly deleted. 
            There seems to be an issue in Matlab where it is removing DLLs from memory before it destroys the handle class objects associated with SasktranIF and Pratmo-boxModel. I have trapped the problem with the C++
            debugger and  there is definitely an issue with DLL's being prematurely unloaded. I need someway to keep the DLL's loaded.