ENH: Replaced index of layer by authority-code in reference-laye rcombo-box.
ENH: Replaced index of layer by authority-code in reference-laye rcombo-box.

orfeotoolbox/OTB,orfeotoolbox/OTB,orfeotoolbox/OTB,orfeotoolbox/OTB,orfeotoolbox/OTB,orfeotoolbox/OTB