Fixed UI issue in windows version, fixed bug that players where listed twice sometimes.
Minor change to be able to run on linux machine if needed, no executable for linux by now.
Multiple files sending to server enhanced, image processing on desktop client enhanced including UI feedback for user, added progress dialog for data packing process of tcp file message for more than 5 files to ensure some fb for user, fixed timeout bug in udpresponselistener, fixed some minor bugs, enhanced image preview for single selection and differentiation between types of multiple selection, fixed preview issue when quick selecting multiple files using the shift key, added selection label showing what is selected and how many files are selected, will be used in a next step as a visual help for the user when splitting up sending loads of files in portions of about 50 files.
First part of GUI code restructuring in new GUI package, minor change on raspberry side to auto restart player when new files are copied to the player, cross test windows and player update.
Merge.