* Using focus events only (in/out, new flag)
* Removed mouse (double) clicks for item selection (not needed anymore)
* Making it truely selectable whould have made deleting items from the scene (clearWorkbench) more complicated
* Also: moved label to top layer (like nodes)


git-svn-id: https://svn.origo.ethz.ch/fidelity@31 53d1999f-d1a8-4366-aa61-588fded17473