Comment # 6 on bug 76375 from Xavier Claessens

I reported a bug on EDS with a patch for the when the vcard is just
"END:VCARD":
  https://bugzilla.gnome.org/show_bug.cgi?id=726788

With that fix, all vcards are actually imported correctly since it won't crash,
but it adds lots of empty contacts because it considers "END:VCARD" to be a
full vcard. One possible fix for that is skipping empty contacts in
EvolutionContactSource::insertItem() ?