Have these programs instantiate a GApplication to ensure they get a
connection to the WindowServer, otherwise the clipboard will not work.
Sorry Sergey! :^)
GEventLoop was just a dummy subclass of CEventLoop anyway. The only
thing it actually did was make sure a GWindowServerConnectionw was
instantiated. We now take care of that in GApplication instead.
CEventLoop is now non-virtual and a little less confusing. :^)
You can now copy into the system clipboard like this:
$ copy hello friends
or like this:
$ copy < ReadMe.md
or like this:
$ copy --type png < /res/wallpapers/sunset-retro.png
And paste just with
$ paste
or to view the copied type:
$ paste --print-type
