calling area button stuff
Merge branch 'master' of https://medien.informatik.uni-ulm.de/git/mind_server
public discplay - popup jpeg streamer
Merge branch 'master' of https://medien.informatik.uni-ulm.de/git/mind_server
public discplay - popup jpeg streamer patryk and laura combined
implemented persistant anonymous keys
Merge branch 'master' of ssh://medien.informatik.uni-ulm.de/mind_server