Added more code to test the integrity of the source data arrays.
Added more code to test the integrity of the source data arrays.

Source data array stores item IDs and represents the original data
series before normalization.

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core