Fix XDnd implementation for thunar, dolphin and other file managers
- Fix a faulty XdndFinshed event which was not sent to the right source (caused the dolphin issue)
- Fix a potential issue with XdndFinished where the event said it did not finished while it did
- Fix format type detection by implementing the standard correctly and using URIList (caused the thunar issue)
- Fix version check for a better standard compability
related to f3d/f3d#228 (closed)
Edited by Mathieu Westphal (Kitware)