message: improve desktop integration (icons).
diff: usr/local/bin/peercoin-qt usr/bin
  -share/pixmaps/peercoin32.xpm usr/share/pixmaps
  -share/pixmaps/peercoin16.xpm usr/share/pixmaps
  +share/pixmaps/peercoin16.png usr/share/pixmaps
  +share/pixmaps/peercoin32.png usr/share/pixmaps
  share/pixmaps/peercoin128.png usr/share/pixmaps
  +share/pixmaps/peercoin256.png usr/share/pixmaps
  debian/peercoin-qt.desktop usr/share/applications
  debian/peercoin-qt.protocol usr/share/kde4/services/
  \ No newline at end of file
  