digiKam: Improve integration of Photivo

by peex for KDE

digikam and Photivo are perfect complements: digiKam is the best photo management software I have ever known. The raw file developing tool Photivo offers a remarkable feature set, high quality of processing and an optimized workflow. My motivation is to make digiKam and Photivo nicely integrate into each other in order to combine the best out of both applications.