BUG: fixed improper importing a series of dicom images.
requested to merge github/fork/kevinwangcanada/3386-Import-of-certain-dicom-image-series-results-in-incorrect-scalar-type into master
Created by: kevinwangcanada
Fixed issue when importing a series of dicom images, the scalar type is set incorrectly. A min and a max are used to check the scalar range now and determine the correct scalar type for importing image.